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import pkg_resources def find_plugins(plug_type): """Finds all plugins matching specific entrypoint type. Arguments: plug_type (str): plugin entrypoint string to retrieve Returns: dict mapping plugin names to plugin entrypoints """ return { entry_point.name: entry_point.load() for entry_point in pkg_resources.iter_entry_points(plug_type) }
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from typing import List def _read_resultset_columns(cursor) -> List[str]: """ Read names of all columns returned by a cursor :param cursor: Cursor to read column names from """ if cursor.description is None: return [] else: return [x[0] for x in cursor.description]
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def max_dict(d): """Return dictionary key with the maximum value""" if d: return max(d, key=lambda key: d[key]) else: return None
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import typing def hex_to_color(color: str) -> typing.Tuple[int, int, int]: """ Helper method for transforming a hex string encoding a color into a tuple of color entries """ return int(color[:2], base=16), int(color[2:4], base=16), int(color[4:6], base=16)
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import six def truncate_rows(rows, length=30, length_id=10): """ Truncate every string value in a dictionary up to a certain length. :param rows: iterable of dictionaries :param length: int :param length_id: length for dict keys that end with "Id" :return: """ def trimto(s, l): """ Trim string to length. :param s: string to trim :param l: length """ if isinstance(s, six.string_types): return s[:l + 1] return s result = [] for row in rows: if isinstance(row, dict): updated = {} for k, v in row.items(): if k.endswith('Id'): updated[k] = trimto(v, length_id) else: updated[k] = trimto(v, length) result.append(updated) elif isinstance(row, six.string_types): result.append(trimto(row, length)) else: result.append(row) return result
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def find_adjacent(left, line): """ find the indices of the next set of adjacent 2048 numbers in the list Args: left: start index of the "left" value line: the list of 2048 numbers Returns: left, right: indices of the next adjacent numbers in the list if there are no more adjacent numbers, left will be len(line) - 1 """ # find the next non zero index for left while left < (len(line) - 1) and line[left] == 0: left += 1 right = left + 1 # find the next non zero index after left while right < len(line) and line[right] == 0: right += 1 return left, right
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def max_power_rule(mod, g, tmp): """ **Constraint Name**: GenVar_Max_Power_Constraint **Enforced Over**: GEN_VAR_OPR_TMPS Power provision plus upward services cannot exceed available power, which is equal to the available capacity multiplied by the capacity factor. """ return ( mod.GenVar_Provide_Power_MW[g, tmp] + mod.GenVar_Upwards_Reserves_MW[g, tmp] <= mod.Capacity_MW[g, mod.period[tmp]] * mod.Availability_Derate[g, tmp] * mod.gen_var_cap_factor[g, tmp] )
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import itertools def powerset(iterable): """Yield all subsets of given finite iterable. Based on code from itertools docs. Arguments: iterable -- finite iterable We yield all subsets of the set of all items yielded by iterable. >>> sorted(list(powerset([1,2,3]))) [(), (1,), (1, 2), (1, 2, 3), (1, 3), (2,), (2, 3), (3,)] """ s = list(iterable) return itertools.chain.from_iterable( itertools.combinations(s, r) for r in range(len(s)+1) )
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import re def clean_str(s): """ Clean a string so that it can be used as a Python variable name. Parameters ---------- s : str string to clean Returns ------- str string that can be used as a Python variable name """ # http://stackoverflow.com/a/3305731 # https://stackoverflow.com/a/52335971 return re.sub(r"\W|^(?=\d)", "_", s)
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import fileinput def get_all_ints(fn): """Returns a list of integers from 'fn'. Arguments: - fn - a string representing input file name. If None or equal to '-' - read from STDIN; fn is treated as a single input integer if it is a digit. """ if fn is None: fn = '-' if fn.isdigit(): return [int(fn)] # just a single integer all_ints = [] for line in fileinput.input(files=fn): line = line.rstrip() if line.isspace(): continue if not line.isdigit(): raise Exception("Wrong integer '%s'!" % line) all_ints.append(int(line)) return all_ints
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def check_answers(answers, answer_key): """ Check students’ answers against answer key. Inputs: answers, a tuple of tuples of strs. answer_key, a tuple of strs. Returns: tuple of tuples of ints. """ def check_section(current, start, end): """ Mark answers in a section. Inputs: current, a list of strs. start, an int. end, an int. Returns: an int. """ counter = 0 for i in range(start, end): if current[i] == answer_key[i]: counter += 1 return counter final = [] for elem in answers: results = [ check_section(elem, 0, 12), check_section(elem, 12, 24), check_section(elem, 24, 36), check_section(elem, 36, 47), check_section(elem, 47, 57), check_section(elem, 57, 71), ] final.append(tuple(results)) return tuple(final)
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from typing import Optional from typing import List def parse_match_phase_argument(match_phase: Optional[List[str]] = None) -> List[str]: """ Parse match phase argument. :param match_phase: An optional list of match phase types to use in the experiments. Currently supported types are 'weak_and' and 'or'. By default the experiments will use 'weak_and'. :return: A list with all the match phase types to use in the experiments. """ if not match_phase: match_phase_list = ["weak_and"] else: assert all( [x in ["or", "weak_and"] for x in match_phase] ), "match_phase must be a list containing 'weak_and' and/or 'or'." match_phase_list = match_phase return match_phase_list
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def getMaxMinFreq(msg): """ Get the max and min frequencies from a message. """ return (msg["mPar"]["fStop"], msg["mPar"]["fStart"])
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def l(lam, f, w): """Compute l""" return lam * f * w
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def isRunning( proc ): """is the process running? Parameters: * proc (psutil.Popen): Process to be checked Returns: * bool: True if the process is running. """ if proc == None: return proc.poll() return proc.is_running()
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def clean_dict(source, keys=[], values=[]): """Removes given keys and values from dictionary. :param dict source: :param iterable keys: :param iterable values: :return dict: """ dict_data = {} for key, value in source.items(): if (key not in keys) and (value not in values): dict_data[key] = value return dict_data
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def compute_target(difficulty_target_bits): """ Calculate a target hash given a difficulty. """ return 2 ** (256 - difficulty_target_bits)
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def is_available(event): """ Checks if the event has the transparency attribute. :param event: is the event to check. :return: True if it is transparent and False if not """ if 'transparency' in event: available = True else: available = False return available
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def is_raisable(obj) -> bool: """ Test if object is valid in a "raise obj" statement. """ return isinstance(obj, Exception) or ( isinstance(obj, type) and issubclass(obj, Exception) )
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import re def check_if_url(string: str) -> bool: """Checks if a string passed in is an URL. Args: string (str): string to check Returns: bool: True if it is, False otherwise """ regex = re.compile( r"^(http://www\.|https://www\.|http://|https://)?[a-z0-9]+([\-.][a-z0-9]+)*\.[" r"a-z]{2,5}(:[0-9]{1,5})?(/.*)?$") return re.match(regex, string) is not None
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def color_list(s): """Convert a list of RGB components to a list of triples. Example: the string '255,127,0:127,127,127:0,0,255' is converted to [(255,127,0), (127,127,127), (0,0,255)].""" return (map(int,rgb.split(',')) for rgb in s.split(':'))
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import json def read_corpus(file_path): """ 读取给定的语料库,并把问题列表和答案列表分别写入到 qlist, alist 里面。 在此过程中,不用对字符换做任何的处理(这部分需要在 Part 2.3里处理) qlist = ["问题1", “问题2”, “问题3” ....] alist = ["答案1", "答案2", "答案3" ....] 务必要让每一个问题和答案对应起来(下标位置一致) :param file_path: str, 问答对文件路径 :return: qlist: list 问题列表 alist: list 答案列表 """ qlist = [] alist = [] # 读取文件并将json解析为dict with open(file_path) as f: json_str = f.read() qa_dic = json.loads(json_str) # 解析dict,的到q-a对 for data in qa_dic['data']: for para in data['paragraphs']: for qas in para['qas']: qlist.append(qas['question']) if len(qas['answers']) == 0: alist.append(qas['plausible_answers'][0]['text']) else: alist.append(qas['answers'][0]['text']) assert len(qlist) == len(alist) # 确保长度一样 return qlist, alist
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def set_server(client, server_url): """Select a Windchill server. Args: client (obj): creopyson Client server_url (str): server URL or Alias Returns: None """ data = {"server_url": server_url} return client._creoson_post("windchill", "set_server", data)
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def dictify(storage_obj): """Create a dict object from storage_obj""" return dict(storage_obj.items())
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from typing import Union def keycap_digit(c: Union[int, str]) -> str: """Returns a keycap digit emoji given a character.""" return (str(c).encode("utf-8") + b"\xe2\x83\xa3").decode("utf-8")
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def worksheet_as_list_of_lists(ws): """Convert a Worksheet object to a 2D list.""" table = [] for row in ws.rows: table.append([c.value for c in row]) return table
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def compress(traj, copy=True, **kwds): """Wrapper for :meth:`Trajectory.compress`. Parameters ---------- copy : bool Return compressed copy or in-place modified object. **kwds : keywords keywords to :meth:`Trajectory.compress` Examples -------- >>> trc = compress(tr, copy=True, forget=['coords']) >>> trc.dump('very_small_file.pk') """ if copy: out = traj.copy() else: out = traj out.compress(**kwds) return out
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import socket def binary_ip(host): """binary_ip(host) -> str Resolve host and return IP as four byte string. Example: >>> binary_ip("127.0.0.1") '\\x7f\\x00\\x00\\x01' """ return socket.inet_aton(socket.gethostbyname(host))
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def _get_integer_intervals(xmin, xmax): """ For a given interval [xmin, xmax], returns the minimum interval [iXmin, iXmax] that contains the original one where iXmin and iXmax are Integer numbers. Examples: [ 3.45, 5.35] => [ 3, 6] [-3.45, 5.35] => [-4, 6] [-3.45, -2.35] => [-4, -2] Parameters ---------- xmin: float origin of the interval xmax: float end of the interval Returns ------- Returns the interval [iXmin, iXmax] iXmin: integer Minimum value of the integer interval iMmax: integer Maximum value of the integer interval """ if(xmin<0.0 and xmin!=int(xmin)): iXmin=int(xmin-1) else: iXmin = int(xmin) if(xmax==int(xmax)): iXmax=xmax else: iXmax=int(xmax+1) return iXmin, iXmax
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def multByScalar(t , n = 100.0): """ Multiply a tuple by a scalar """ new = tuple([x * n for x in t]) return new
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def xstr(s): """Creates a string object, but for null objects returns an empty string Args as data: s: input object Returns: object converted to a string """ if s is None: return "" else: return str(s)
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import json def list_to_json_array(value_list, array_name, value_name=None, start=True, stop=True): """ Creates a json array from a list. If the optional value_name is passed then the list becomes a json array of dictionary objects. """ if start: start_brace = "{" else: start_brace = " " if stop: stop_brace = "}" else: stop_brace = "," if value_name is None: return "%s\"%s\": %s%s" % (start_brace, array_name, json.dumps(value_list), stop_brace) lst = [] for value in value_list: data_dict = {value_name: value} lst.append(data_dict) return "%s\"%s\": %s%s" % (start_brace, array_name, json.dumps(lst), stop_brace)
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def word(name): """\ Function decorator used to tag methods that will be visible in the RPN builtin namespace. """ def decorate_word(function): function.rpn_name = name.lower() return function return decorate_word
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import torch def tensor(data, *args, **kwargs): """ In ``treetensor``, you can create a tree tensor with simple data structure. Examples:: >>> import torch >>> import treetensor.torch as ttorch >>> ttorch.tensor(True) # the same as torch.tensor(True) tensor(True) >>> ttorch.tensor([1, 2, 3]) # the same as torch.tensor([1, 2, 3]) tensor([1, 2, 3]) >>> ttorch.tensor({'a': 1, 'b': [1, 2, 3], 'c': [[True, False], [False, True]]}) <Tensor 0x7ff363bbcc50> ├── a --> tensor(1) ├── b --> tensor([1, 2, 3]) └── c --> tensor([[ True, False], [False, True]]) """ return torch.tensor(data, *args, **kwargs)
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from typing import Mapping def isdict(obj): """Return True if the obj is a mapping of some sort.""" return isinstance(obj, Mapping)
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def calc_multiplicity(mut_series, purity, cr_diff, c0): """Calculate multiplicity for the mutation""" mu_min_adj = (mut_series['mu_minor'] - c0) / cr_diff mu_maj_adj = (mut_series['mu_major'] - c0) / cr_diff # returns the multiplicity * CCF for this mutation return mut_series['VAF'] * (purity * (mu_min_adj + mu_maj_adj) + 2 * (1 - purity)) / purity
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def dictElement(element, prefix=None): """Returnss a dictionary built from the children of *element*, which must be a :class:`xml.etree.ElementTree.Element` instance. Keys of the dictionary are *tag* of children without the *prefix*, or namespace. Values depend on the content of the child. If a child does not have any children, its text attribute is the value. If a child has children, then the child is the value.""" dict_ = {} length = False if isinstance(prefix, str): length = len(prefix) for child in element: tag = child.tag if length and tag.startswith(prefix): tag = tag[length:] if len(child) == 0: dict_[tag] = child.text else: dict_[tag] = child return dict_
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def time_like(line): """Test if a line looks like a timestamp""" # line might be like '12:33 - 12:48' or '19:03' if line.count(':') == 2: if line.count('-') >= 1: line_without = line.replace(':', '') line_without = line_without.replace('-', '') line_without = line_without.replace(' ', '') try: int(line_without) return True except ValueError: pass if line.count(':') == 1: line_without = line.replace(':', '') try: int(line_without) return True except ValueError: pass return False
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def find1Dpeak(arr): """ Finds a 1D peak in a list of comparable types A 1D peak is an x in L such that it is greater than or equal to all its neighbors. ex. [1, 1, 2, 1] in this list, the elements at index 0 and index 2 are peaks. Complexity: O(log(n)) where n = len(list) """ n = len(arr) if n == 1: return arr[0] if n == 2: return max(arr) if arr[n / 2] < arr[(n / 2) - 1]: return find1Dpeak(arr[:n / 2]) if arr[n / 2] < arr[(n / 2) + 1]: return find1Dpeak(arr[n / 2:]) return arr[n / 2]
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def set_origin(cut_plane, center_x1=0.0, center_x2=0.0): """ Establish the origin of a CutPlane object. Args: cut_plane (:py:class:`~.tools.cut_plane.CutPlane`): Plane of data. center_x1 (float, optional): x1-coordinate of origin. Defaults to 0.0. center_x2 (float, optional): x2-coordinate of origin. Defaults to 0.0. Returns: cut_plane (:py:class:`~.tools.cut_plane.CutPlane`): Updated plane of data. """ # Store the un-interpolated input arrays at this slice cut_plane.df.x1 = cut_plane.df.x1 - center_x1 cut_plane.df.x2 = cut_plane.df.x2 - center_x2 return cut_plane
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import hashlib def _hash(mapping: dict) -> str: """ Return a hash of an entire dictionary. Args: mapping: a dictionary of hash-able keys to hash-able values, i.e., __str__ should return a unique representation of each object Returns: a hash of the dictionary """ # create a string to store the mapping in mapping_str = '' # iterate over the sorted dictionary keys to ensure reproducibility for key in sorted(mapping.keys()): # add the key value pairing to the string representation mapping_str += '{}{}'.format(key, mapping[key]) # convert the string to bytes and return the MD5 has of the bytes return hashlib.md5(bytes(mapping_str, 'utf8')).hexdigest()
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def parse_arg_type(arg): """ Parses the type of an argument based on its string value. Only checks ints, floats, and bools, defaults to string. For instance, "4.0" will convert to a float(4.0) :param arg: The argument value :return: The value converted to the proper type. """ if type(arg) != str: return arg else: # check int try: return int(arg) except ValueError: pass # check float try: return float(arg) except ValueError: pass # check bool if arg.lower() == "true": return True elif arg.lower() == "false": return False # return any other string return arg
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def is_substring_divisible(num: tuple) -> bool: """ Returns True if the pandigital number passes all the divisibility tests. >>> is_substring_divisible((0, 1, 2, 4, 6, 5, 7, 3, 8, 9)) False >>> is_substring_divisible((5, 1, 2, 4, 6, 0, 7, 8, 3, 9)) False >>> is_substring_divisible((1, 4, 0, 6, 3, 5, 7, 2, 8, 9)) True """ if num[3] % 2 != 0: return False if (num[2] + num[3] + num[4]) % 3 != 0: return False if num[5] % 5 != 0: return False tests = [7, 11, 13, 17] for i, test in enumerate(tests): if (num[i + 4] * 100 + num[i + 5] * 10 + num[i + 6]) % test != 0: return False return True
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def fizz_buzz_custom_2(string_one="Fizz", string_two="Buzz", num_one=3, num_two=5): """ >>> not 0 True >>> not 5 % 5 True >>> not 6 % 5 False >>> "Test" * True 'Test' >>> "Test" * False '' >>> "" or 1 1 """ return [ f"{string_one * (not d % num_one)}{string_two * (not d % num_two)}" or d for d in range(1, 101) ]
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def get_threshold(rows, bands): """Approximate threshold from bandwidth and number of rows :param rows: rows per band :param bands: number of bands :return: threshold value :rtype: float """ return (1. / bands) ** (1. / rows)
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def keypoint_2d_loss(criterion_keypoints, pred_keypoints_2d, gt_keypoints_2d, has_pose_2d): """ Compute 2D reprojection loss if 2D keypoint annotations are available. The confidence (conf) is binary and indicates whether the keypoints exist or not. """ conf = gt_keypoints_2d[:, :, -1].unsqueeze(-1).clone() loss = (conf * criterion_keypoints(pred_keypoints_2d, gt_keypoints_2d[:, :, :-1])).mean() return loss
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def getInt(s, notFoundReturn=-1): """ attempt to find a positive integer in a string @param s [string] @param notFoundReturn = value to be returned if no integer is found @return int """ firstIx = -1 for i, c in enumerate(s): if c in "0123456789": firstIx = i break if firstIx == -1: return notFoundReturn to = firstIx+1 while 1: #print "s=%r firstIx=%r to=%r" % (s, firstIx, to) # if (nextIx) at end of string, break if to+1 > len(s): break ch = s[to] #print "to=%r ch=%r" % (to, ch) if ch not in "0123456789": break to += 1 #print "firstIx=%r to=%r" % (firstIx, to) numStr = s[firstIx:to] return int(numStr)
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import curses def create_window(start_x, start_y, width, height): """Create window helper method with sane parameter names.""" return curses.newwin(height, width, start_y, start_x)
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def _get_metadata_revision(metadata_repo, mongo_repo, project, revision): """Get the metadata revision that corresponds to a given repository, project, revision.""" for metadata_revision in metadata_repo.list_revisions(): reference = metadata_repo.get_reference(metadata_revision, project) if not reference: # No reference for this revision. This should not happen but we keep trying in # case we can find an older revision with a reference. continue if mongo_repo.is_ancestor(reference, revision): # We found a reference that is a parent of the current revision. return metadata_revision return None
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def _positive(index: int, size: int) -> int: """Convert a negative index to a non-negative integer. The index is interpreted relative to the position after the last item. If the index is smaller than ``-size``, IndexError is raised. """ assert index < 0 # noqa: S101 index += size if index < 0: raise IndexError("lazysequence index out of range") return index
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def parse_field_configured(obj, config): """ Parses an object to a Telegram Type based on the configuration given :param obj: The object to parse :param config: The configuration: - is array? - is array in array? - type of the class to be loaded to :return: the parsed object """ foreign_type = config if type(config) != dict else config['class'] if type(config) == dict: if 'array' in config and config['array'] is True: return [foreign_type(x) for x in obj] elif 'array_of_array' in config and config['array_of_array'] is True: res = [] for inner_obj in obj: res.append([foreign_type(x) for x in inner_obj]) return res return foreign_type(obj)
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def _compute_lineline_intersection(line1_pt1, line1_pt2, line2_pt1, line2_pt2): """Algorithm to compute a line to line intersection, where the two lines are both defined by two points. Based on this article: https://en.wikipedia.org/wiki/Line%E2%80%93line_intersection :param line1_pt1: First point on first line :type line1_pt1: tuple :param line1_pt2: First point on first line :type line1_pt2: tuple :param line2_pt1: First point on first line :type line2_pt1: tuple :param line2_pt2: First point on first line :type line2_pt2: tuple :return: intersection point (p_x, p_y), if it exists :rtype: tuple or None """ (x1, y1) = line1_pt1 (x2, y2) = line1_pt2 (x3, y3) = line2_pt1 (x4, y4) = line2_pt2 # Check for parallel lines denominator = (x1 - x2) * (y3 - y4) - (y1 - y2) * (x3 - x4) if denominator == 0: return None p_x = ((x1*y2 - y1*x2) * (x3 - x4) - (x1 - x2) * (x3*y4 - y3*x4)) \ / denominator p_y = ((x1*y2 - y1*x2) * (y3 - y4) - (y1 - y2) * (x3*y4 - y3*x4)) \ / denominator return (p_x, p_y)
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def actionable(msg): """ Make instructions to actionable items green so they stand out from generic logging. """ return f'\033[92m{msg}\033[0m'
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def _create_cg_with_member(vnx_gf): """ Helper function to create a cg with a lun :param vnx_gf: the vnx general test fixture :return: created cg """ lun_name = vnx_gf.add_lun_name() lun = vnx_gf.pool.create_lun(lun_name) cg_name = vnx_gf.add_cg_name() cg = vnx_gf.vnx.create_cg(cg_name) cg.add_member(lun) return cg
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def get_all_headers(message, key): """ Given an HTTPMessage, return all headers matching a given key. """ return message.get_all(key)
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def as_unsigned_int32_array(byte_array): """Interprets array of byte values as unsigned 32 bit ints.""" def uint32(a, b, c, d): return a + (b << 8) + (c << 16) + (d << 24) return [uint32(*byte_array[i:i + 4]) for i in range(0, len(byte_array), 4)]
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def normalise_period(val): """Return an integer from 1 to 12. Parameters ---------- val : str or int Variant for period. Should at least contain numeric characters. Returns ------- int Number corresponding to financial period. Examples -------- >>> normalise_period('P6') 6 >>> normalise_period(202106) 6 """ val = ''.join(c for c in str(val) if c.isdigit()) return int(val[-2:])
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from datetime import datetime def humanize_timestamp(utc_timestamp, verbose=False): """ Convert a utc timestamp into a human readable relative-time. """ timedelta = datetime.utcnow() - datetime.utcfromtimestamp(utc_timestamp) seconds = int(timedelta.total_seconds()) if seconds < 60: return 'moments ago' if verbose else '0min' minutes = seconds // 60 if minutes < 60: return ('%d minutes ago' % minutes) if verbose else ('%dmin' % minutes) hours = minutes // 60 if hours < 24: return ('%d hours ago' % hours) if verbose else ('%dhr' % hours) days = hours // 24 if days < 30: return ('%d days ago' % days) if verbose else ('%dday' % days) months = days // 30.4 if months < 12: return ('%d months ago' % months) if verbose else ('%dmonth' % months) years = months // 12 return ('%d years ago' % years) if verbose else ('%dyr' % years)
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def get_marker(label, chunk): """ Returns marker instance from chunk based on the label correspondence """ for marker in chunk.markers: if label == marker.label: return marker print("Marker not found! " + label) return False
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def check_default_empty(default): """Helper function to validate if a default parameter is empty based on type""" if isinstance(default, str) or isinstance(default, list): return len(default) == 0 elif isinstance(default, int): return False elif isinstance(default, dict): return len(default.keys()) == 0
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import itertools def flatten(iterable): """Reduce dimensionality of iterable containing iterables Args: iterable: A multi-dimensional iterable Returns: A one dimensional iterable """ return itertools.chain.from_iterable(iterable)
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def check_lead_zero(to_check): """Check if a number has a leading 0. Args: to_check (str): The number to be checked. Returns: True if a leading 0 is found or the string is empty, False otherwise. """ if str(to_check) in (None, ''): return True elif str(to_check[0]) != '0': return False else: return True
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def dec2bin(x: int, n: int = 2) -> str: """Converts a single decimal integer to it binary representation and returns as string for length >= n. """ return str(int(bin(x)[2:])).zfill(n)
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import math def convert_bytes_to_string(number: int) -> str: """Returns the conversion from bytes to the correct version (1024 bytes = 1 KB) as a string. :param number: number to convert to a readable string :return: the specified number converted to a readable string """ num = number factor = 1024 if num >= factor: num /= factor if num >= factor: num /= factor if num >= factor: num /= factor if num >= factor: num /= factor if num >= factor: num /= factor suffix = " PB" else: suffix = " TB" else: suffix = " GB" else: suffix = " MB" else: suffix = " KB" else: suffix = " Bytes" rounding_factor = 10**2 rounded = math.floor(num * rounding_factor) / rounding_factor return f"{rounded:.2f}" + suffix
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def _get_location(location_text): """Used to preprocess the input location_text for URL encoding. Doesn't do much right now. But provides a place to add such steps in future. """ return location_text.strip().lower()
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import fnmatch def _match_in_cache(cache_tree, list_of_names): """ :type cache_tree: defaultdict :description cache_tree: a defaultdict initialized with the tree() function. Contains names of entries in the kairosdb, separated by "." per the graphite convention. :type list_of_names: list :description list_of_names: list of strings, in order, that will be sought after in the cache tree. :rtype: list :return: A list of matches, possibly empty. Given a cache_tree, and a prefix, returns all of the values associated with that prefix, that is, the keys that reside under the prefix. """ head_item = list_of_names[0] # print "head_item is {0}".format(head_item) head_item_matches = [ m for m in cache_tree.keys() if fnmatch.fnmatch(m, head_item) ] if head_item not in cache_tree.keys(): # print "A" return [] # Empty List to signify we're done here elif len(list_of_names) == 1: # print "B" return cache_tree[head_item].keys() else: # print "C" tail_list = list_of_names[1:] return _match_in_cache(cache_tree[head_item], tail_list)
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def range_intersect(a, b, extend=0): """ Returns the intersection between two reanges. >>> range_intersect((30, 45), (55, 65)) >>> range_intersect((48, 65), (45, 55)) [48, 55] """ a_min, a_max = a if a_min > a_max: a_min, a_max = a_max, a_min b_min, b_max = b if b_min > b_max: b_min, b_max = b_max, b_min if a_max + extend < b_min or b_max + extend < a_min: return None i_min = max(a_min, b_min) i_max = min(a_max, b_max) if i_min > i_max + extend: return None return [i_min, i_max]
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import codecs def rot13(s: str) -> str: """ROT-13 encode a string. This is not a useful thing to do, but serves as an example of a transformation that we might apply.""" return codecs.encode(s, "rot_13")
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from typing import Any def is_numeric_scalar(x: Any) -> bool: """ Returns if the given item is numeric >>> is_numeric_scalar("hello") False >>> is_numeric_scalar("234") True >>> is_numeric_scalar("1e-5") True >>> is_numeric_scalar(2.5) True """ if isinstance(x, (float, int)): return True elif isinstance(x, str): try: _ = float(x) return True except ValueError: return False return False
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def is_file_image(filename): """Return if a file's extension is an image's. Args: filename(str): file path. Returns: (bool): if the file is image or not. """ img_ex = ['jpg', 'png', 'bmp', 'jpeg', 'tiff'] if '.' not in filename: return False s = filename.split('.') if s[-1].lower() not in img_ex: return False if filename.startswith('.'): return False return True
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def _get_jgroup(grouped_data): """Get the JVM object that backs this grouped data, taking into account the different spark versions.""" d = dir(grouped_data) if '_jdf' in d: return grouped_data._jdf if '_jgd' in d: return grouped_data._jgd raise ValueError('Could not find a dataframe for {}. All methods: {}'.format(grouped_data, d))
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def parse_fasta (lines): """Returns 2 lists: one is for the descriptions and other one for the sequences""" descs, seqs, data = [], [], '' for line in lines: if line.startswith('>'): if data: # have collected a sequence, push to seqs seqs.append(data) data = '' descs.append(line[1:]) # Trim '>' from beginning else: data += line.rstrip('\r\n') # there will be yet one more to push when we run out seqs.append(data) return descs, seqs
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def is_bool(obj): """Returns ``True`` if `obj` is a ``bool``.""" return isinstance(obj, bool)
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def files_are_identical(pathA, pathB): """ Compare two files, ignoring carriage returns, leading whitespace, and trailing whitespace """ f1 = [l.strip() for l in pathA.read_bytes().splitlines()] f2 = [l.strip() for l in pathB.read_bytes().splitlines()] return f1 == f2
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import uuid def _maybe_convert(value): """Possibly convert the value to a :py:class:`uuid.UUID` or :py:class:`datetime.datetime` if possible, otherwise just return the value :param str value: The value to convert :rtype: uuid.UUID|datetime.datetime|str """ try: return uuid.UUID(value) except ValueError: return value
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import pickle def load(name: str) -> object: """load an object using pickle Args: name: the name to load Returns: the unpickled object. """ with open(name, "rb") as file: obj = pickle.load(file) return obj
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def decodeAny(string): """Try to decode the string from UTF-8 or latin9 encoding.""" if isinstance(string, str): return string try: return string.decode('utf-8') except UnicodeError: # decoding latin9 never fails, since any byte is a valid # character there return string.decode('latin9')
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import pkg_resources def python_package_version(package: str) -> str: """ Determine the version of an installed Python package :param package: package name :return: version number, if could be determined, else '' """ try: return pkg_resources.get_distribution(package).version except pkg_resources.DistributionNotFound: return ''
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def set_extension(path, ext): """Set the extension of file. Given the path to a file and the desired extension, set the extension of the file to the given one. Args: path: path to a file ext: desired extension Return: path with the correct extension """ ext = ext.replace(".", "") current_ext = path.split(".") if len(current_ext) == 2: path = path.replace(current_ext[1], ext) else: path = path + "." + ext return path
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import re def get_select_cols_and_rest(query): """ Separate the a list of selected columns from the rest of the query Returns: 1. a list of the selected columns 2. a string of the rest of the query after the SELECT """ from_loc = query.lower().find("from") raw_select_clause = query[0:from_loc].rstrip() rest_of_query = query[from_loc:len(query)] # remove the SELECT keyword from the query select_pattern = re.compile("select", re.IGNORECASE) raw_select_clause = select_pattern.sub('', raw_select_clause) # now create and iterate through a list of of the SELECT'ed columns selected_columns = raw_select_clause.split(',') selected_columns = [c.strip() for c in selected_columns] return selected_columns, rest_of_query
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def getTableHTML(rows): """ Binds rows items into HTML table code. :param list rows: an array of row items :return: HTML table code with items at rows :rtype: str >>> getTableHTML([["Name", "Radek"], ["Street", "Chvalinska"]]) '<table><tr><td>Name</td><td>Radek</td></tr><tr><td>Street</td><td>Chvalinska</td></tr><table>' """ if rows: result = "<table>" for row in rows: result += "<tr>" for item in row: result += "<td>%s</td>" % item result += "</tr>" result += "<table>" return result else: return ""
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def build_complement(c): """ The function convert alphabets in input c into certain alphabets. :param c: str, can be 'A','T','G','C','a','t','g','c' :return: The string of converted alphabets. """ c = c.upper() # The Str Class method changes input c into capital. total = '' for i in range(len(c)): # Using for loop to convert the input alphabet from index 0 to the last index # to certain alphabet, A to T, C to G vice versa. ans = '' if c[i] == 'A': ans += 'T' if c[i] == 'T': ans += 'A' if c[i] == 'C': ans += 'G' if c[i] == 'G': ans += 'C' total += ans print('The complement of', c, 'is', total) return total
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def normalise_reward(reward, prev_lives, curr_lives): """ No reward normalisation is required in pong; -1 indicates opponent has scored, 0 indicates game is still in play and 1 indicates player has scored. """ return reward
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import torch def _make_input(t, requires_grad=False, device=torch.device('cpu')): """Make zero inputs for AE loss. Args: t (torch.Tensor): input requires_grad (bool): Option to use requires_grad. device: torch device Returns: torch.Tensor: zero input. """ inp = torch.autograd.Variable(t, requires_grad=requires_grad) inp = inp.sum() inp = inp.to(device) return inp
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import torch def bce_loss(pred, target, false_pos_weight=1.0, false_neg_weight=1.0): """Custom loss function with options to independently penalise false positives and false negatives. """ norm = torch.tensor(1.0 / float(len(pred))) tiny = torch.finfo(pred.dtype).tiny false_neg = torch.sum(target * torch.log( torch.clip(pred, min=tiny) # preventing -inf )) false_pos = torch.sum( (torch.tensor(1.0) - target) * torch.log(torch.clip(torch.tensor(1.0) - pred, min=tiny)) ) return - norm * (false_pos_weight * false_pos + false_neg_weight * false_neg)
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def bernoulli_kl(q_probs, p_probs): """ computes the KL divergence per batch between two Bernoulli distributions parametrized by q_probs and p_probs Note: EPS is added for numerical stability, see https://github.com/pytorch/pytorch/issues/15288 Args: q_probs (torch tensor): mean of q [batch_size, *latent_dims] p_probs (torch tensor): mean of p [batch_size, *latent_dims] Returns: kl_div (torch tensor): kl divergence [batch_size, *latent_dims] """ EPS = 1e-32 p1 = p_probs p0 = 1 - p1 q1 = q_probs q0 = 1 - q1 logq1 = (q1 + EPS).log() logq0 = (q0 + EPS).log() logp1 = (p1).log() logp0 = (p0).log() kl_div_1 = q1 * (logq1 - logp1) kl_div_0 = q0 * (logq0 - logp0) return kl_div_1 + kl_div_0
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def formatGpuCount(gpuCount): """ Convert the GPU Count from the SLurm DB, to an int The Slurm DB will store a string in the form "gpu:1" if a GPU was requested If a GPU was not requested, it will be empty """ if gpuCount: intGpuCount = int("0"+gpuCount.split(":")[1]) return intGpuCount else: return int(0)
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from typing import MutableMapping from typing import Any def to_nested_dict(d: dict): """ Converts a flat dictionary with '.' joined keys back into a nested dictionary, e.g., {a.b: 1} -> {a: {b: 1}} """ new_config: MutableMapping[str, Any] = {} for k, v in d.items(): if "." in k: sub_keys = k.split(".") sub_d = new_config for sk in sub_keys[:-1]: sub_d = sub_d.setdefault(sk, {}) sub_d[sub_keys[-1]] = v else: new_config[k] = v return new_config
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from typing import Any def validate_boolean(var: Any) -> bool: """Evaluates whether an argument is boolean True/False Args: var: the input argument to validate Returns: var: the value if it passes validation Raises: AssertionError: `var` was not boolean """ assert isinstance(var, bool), "Argument must be True/False" return var
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import functools def or_none(fn): """ Wraps `fn` to return `None` if its first argument is `None`. >>> @or_none ... def myfunc(x): ... return 2 * x + 3 >>> myfunc(4) 11 >>> myfunc(None) """ @functools.wraps(fn) def wrapped(arg, *args, **kw_args): return None if arg is None else fn(arg, *args, **kw_args) return wrapped
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def get_segment_output_path(output_path, muxing_output_path): """ Returns the output path for a stream segment. """ segment_path = muxing_output_path substr = muxing_output_path[0:len(output_path)] if substr == output_path: return muxing_output_path[len(output_path):] return segment_path
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def read_flat_parameters(fname): """Read flat channel rejection parameters from .cov or .ave config file""" try: with open(fname, 'r') as f: lines = f.readlines() except: raise ValueError("Error while reading %s" % fname) reject_names = ['gradFlat', 'magFlat', 'eegFlat', 'eogFlat', 'ecgFlat'] reject_pynames = ['grad', 'mag', 'eeg', 'eog', 'ecg'] flat = dict() for line in lines: words = line.split() if words[0] in reject_names: flat[reject_pynames[reject_names.index(words[0])]] = \ float(words[1]) return flat
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def get_rectangle_coordinates(win): """ Gets the coordinates of two opposite points that define a rectangle and returns them as Point objects. """ point_1 = win.getMouse() point_2 = win.getMouse() return point_1, point_2
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def identifyL23(addition): """Check if it is L2 or L3 delta request.""" return 'L3' if 'routes' in list(addition.keys()) else 'L2'
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def find_border_crossing(subset, path, final_state): """ Find the transition that steps outside the safe L{subset}. @param subset: Set of states that are safe. @type subset: C{set} of L{State} @param path: Path from starting state to L{final_state}, sequence of state and its outgoing edge. @type path: C{list} of pairs (L{State}, L{Event} @param final_state: Final state of the path. @type final_state: L{State} @return: C{None} if the path stays within the safe subset, else a triplet (from-state, event, dest-state). @rtype: Either C{None} or (L{State}, L{Event}, L{State}) @precond: Initial state of the path must be in L{subset} """ if len(path) == 0: # No path => final_state is also the first state => must be safe assert final_state in subset return None assert path[0][0] in subset pred_state, pred_evt = None, None for state, evt in path: if pred_state is not None and state not in subset: # Tests may hold for the second or further entry of the path return (pred_state, pred_evt, state) pred_state, pred_evt = state, evt if final_state in subset: return None return (pred_state, pred_evt, final_state)
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def randomize(df, seed): """Randomizes the order of a Pandas dataframe""" return df.sample(len(df), random_state=seed).reset_index(drop=True)
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import re def count_expr_arity(str_desc): """ Determine the arity of an expression directly from its str descriptor """ # we start by extracting all words in the string # and then count the unique occurence of words matching "x", "y", "z" or "t" return len(set(var for var in re.findall("\w+", str_desc) if re.fullmatch("[xyzt]", var)))
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from pkg_resources import EntryPoint def resolveDotted(dotted_or_ep): """ Resolve a dotted name or setuptools entry point to a callable. """ return EntryPoint.parse('x=%s' % dotted_or_ep).resolve()
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def get_request_header(headers): """ Get all headers that should be included in the pre-signed S3 URL. We do not add headers that will be applied after transformation, such as Range. :param headers: Headers from the GetObject request :return: Headers to be sent with pre-signed-url """ new_headers = dict() headers_to_be_presigned = ['x-amz-checksum-mode', 'x-amz-request-payer', 'x-amz-expected-bucket-owner', 'If-Match', 'If-Modified-Since', 'If-None-Match', 'If-Unmodified-Since'] for key, value in headers.items(): if key in headers_to_be_presigned: new_headers[key] = value return new_headers
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def check_game(board, last_move): """ check if any player has managed to get 3 marks in a row, column or diagonally. :param {String[]} board : current board with marker locations of both players :param {int} last_move : between 1-9 where the most recent marker was put. :return {Boolean} : True if player who played "last_move" has won. False otherwise """ win = ["012","345", "678", "036", "147", "258", "048", "246"] win = list(filter(lambda string : str(last_move) in string, win)) for x in win: if board[int(x[0])] == board[last_move]: if board[int(x[1])] == board[last_move]: if board[int(x[2])] == board[last_move]: return True return False
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