Mercurial > repos > guerler > springsuite

annotate planemo/lib/python3.7/site-packages/future/backports/urllib/response.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
parents d30785e31577
children
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1 """Response classes used by urllib.
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2
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3 The base class, addbase, defines a minimal file-like interface,
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4 including read() and readline(). The typical response object is an
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5 addinfourl instance, which defines an info() method that returns
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6 headers and a geturl() method that returns the url.
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7 """
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8 from __future__ import absolute_import, division, unicode_literals
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9 from future.builtins import object
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10
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11 class addbase(object):
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12 """Base class for addinfo and addclosehook."""
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13
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14 # XXX Add a method to expose the timeout on the underlying socket?
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15
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16 def __init__(self, fp):
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17 # TODO(jhylton): Is there a better way to delegate using io?
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18 self.fp = fp
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19 self.read = self.fp.read
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20 self.readline = self.fp.readline
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21 # TODO(jhylton): Make sure an object with readlines() is also iterable
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22 if hasattr(self.fp, "readlines"):
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23 self.readlines = self.fp.readlines
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24 if hasattr(self.fp, "fileno"):
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25 self.fileno = self.fp.fileno
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26 else:
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27 self.fileno = lambda: None
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28
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29 def __iter__(self):
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30 # Assigning `__iter__` to the instance doesn't work as intended
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31 # because the iter builtin does something like `cls.__iter__(obj)`
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32 # and thus fails to find the _bound_ method `obj.__iter__`.
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33 # Returning just `self.fp` works for built-in file objects but
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34 # might not work for general file-like objects.
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35 return iter(self.fp)
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36
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37 def __repr__(self):
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38 return '<%s at %r whose fp = %r>' % (self.__class__.__name__,
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39 id(self), self.fp)
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40
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41 def close(self):
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42 if self.fp:
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43 self.fp.close()
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44 self.fp = None
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45 self.read = None
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46 self.readline = None
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47 self.readlines = None
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48 self.fileno = None
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49 self.__iter__ = None
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50 self.__next__ = None
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51
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52 def __enter__(self):
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53 if self.fp is None:
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54 raise ValueError("I/O operation on closed file")
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55 return self
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56
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57 def __exit__(self, type, value, traceback):
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58 self.close()
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59
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60 class addclosehook(addbase):
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61 """Class to add a close hook to an open file."""
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62
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63 def __init__(self, fp, closehook, *hookargs):
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64 addbase.__init__(self, fp)
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65 self.closehook = closehook
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66 self.hookargs = hookargs
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67
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68 def close(self):
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69 if self.closehook:
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70 self.closehook(*self.hookargs)
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71 self.closehook = None
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72 self.hookargs = None
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73 addbase.close(self)
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74
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75 class addinfo(addbase):
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76 """class to add an info() method to an open file."""
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77
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78 def __init__(self, fp, headers):
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79 addbase.__init__(self, fp)
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80 self.headers = headers
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81
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82 def info(self):
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83 return self.headers
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84
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85 class addinfourl(addbase):
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86 """class to add info() and geturl() methods to an open file."""
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87
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88 def __init__(self, fp, headers, url, code=None):
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89 addbase.__init__(self, fp)
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90 self.headers = headers
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91 self.url = url
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92 self.code = code
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93
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94 def info(self):
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95 return self.headers
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96
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97 def getcode(self):
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98 return self.code
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99
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100 def geturl(self):
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101 return self.url
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102
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103 del absolute_import, division, unicode_literals, object