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# -*- coding: utf-8 -*-
"""
github3.helpers
~~~~~~~~~~~~~~~~
This module provides various helper functions to the rest of the package.
"""
import inspect
from datetime import datetime
from dateutil.parser import parse as parse_datetime
def is_collection(obj):
"""Tests if an object is a collection."""
col = getattr(obj, '__getitem__', False)
val = False if (not col) else True
if isinstance(obj, basestring):
val = False
return val
# from arc90/python-readability-api
def to_python(obj, in_dict, string_keys=None, date_keys=None, object_map=None, **kwargs):
"""Extends a given object for API Consumption.
:param obj: Object to extend.
:param in_dict: Dict to extract data from.
:param string_keys: List of in_dict keys that will be extracted as strings.
:param date_keys: List of in_dict keys that will be extrad as datetimes.
:param object_map: Dict of {key, obj} map, for nested object results.
"""
if string_keys:
for in_key in string_keys:
# print in_key
obj.__dict__[in_key] = in_dict.get(in_key)
if date_keys:
for in_key in date_keys:
in_date = in_dict.get(in_key)
try:
out_date = datetime.strptime(in_date, '%Y-%m-%d %H:%M:%S')
except TypeError:
out_date = None
obj.__dict__[in_key] = out_date
if object_map:
for (k, v) in object_map.items():
obj.__dict__[k] = v.new_from_dict(in_dict.get(k))
obj.__dict__.update(kwargs)
return obj
# from arc90/python-readability-api
def to_api(in_dict, int_keys=None, date_keys=None):
"""Extends a given object for API Production."""
# Cast all int_keys to int()
if int_keys:
for in_key in int_keys:
if (in_key in in_dict) and (in_dict.get(in_key, None) is not None):
in_dict[in_key] = int(in_dict[in_key])
# Cast all date_keys to datetime.isoformat
if date_keys:
for in_key in date_keys:
if (in_key in in_dict) and (in_dict.get(in_key, None) is not None):
_from = in_dict[in_key]
if isinstance(_from, basestring):
dtime = parse_datetime(_from)
elif isinstance(_from, datetime):
dtime = _from
in_dict[in_key] = dtime.isoformat()
elif (in_key in in_dict) and in_dict.get(in_key, None) is None:
del in_dict[in_key]
# Remove all Nones
for k, v in in_dict.items():
if v is None:
del in_dict[k]
return in_dict
# from kennethreitz/showme
def get_scope(f, args=None):
"""Get scope of given function for Exception scopes."""
if args is None:
args=list()
scope = inspect.getmodule(f).__name__
# guess that function is a method of it's class
try:
if f.func_name in dir(args[0].__class__):
scope += '.' + args[0].__class__.__name__
scope += '.' + f.__name__
else:
scope += '.' + f.__name__
except IndexError:
scope += '.' + f.__name__
# scrub readability.models namespace
scope = scope.replace('readability.api.', '')
return scope
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