Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.11/site-packages/future/backports/urllib/response.py: 35%

1"""Response classes used by urllib. 

2 

3The base class, addbase, defines a minimal file-like interface, 

4including read() and readline(). The typical response object is an 

5addinfourl instance, which defines an info() method that returns 

6headers and a geturl() method that returns the url. 

7""" 

8from __future__ import absolute_import, division, unicode_literals 

9from future.builtins import object 

10 

11class addbase(object): 

12 """Base class for addinfo and addclosehook.""" 

13 

14 # XXX Add a method to expose the timeout on the underlying socket? 

15 

16 def __init__(self, fp): 

17 # TODO(jhylton): Is there a better way to delegate using io? 

18 self.fp = fp 

19 self.read = self.fp.read 

20 self.readline = self.fp.readline 

21 # TODO(jhylton): Make sure an object with readlines() is also iterable 

22 if hasattr(self.fp, "readlines"): 

23 self.readlines = self.fp.readlines 

24 if hasattr(self.fp, "fileno"): 

25 self.fileno = self.fp.fileno 

26 else: 

27 self.fileno = lambda: None 

28 

29 def __iter__(self): 

30 # Assigning `__iter__` to the instance doesn't work as intended 

31 # because the iter builtin does something like `cls.__iter__(obj)` 

32 # and thus fails to find the _bound_ method `obj.__iter__`. 

33 # Returning just `self.fp` works for built-in file objects but 

34 # might not work for general file-like objects. 

35 return iter(self.fp) 

36 

37 def __repr__(self): 

38 return '<%s at %r whose fp = %r>' % (self.__class__.__name__, 

39 id(self), self.fp) 

40 

41 def close(self): 

42 if self.fp: 

43 self.fp.close() 

44 self.fp = None 

45 self.read = None 

46 self.readline = None 

47 self.readlines = None 

48 self.fileno = None 

49 self.__iter__ = None 

50 self.__next__ = None 

51 

52 def __enter__(self): 

53 if self.fp is None: 

54 raise ValueError("I/O operation on closed file") 

55 return self 

56 

57 def __exit__(self, type, value, traceback): 

58 self.close() 

59 

60class addclosehook(addbase): 

61 """Class to add a close hook to an open file.""" 

62 

63 def __init__(self, fp, closehook, *hookargs): 

64 addbase.__init__(self, fp) 

65 self.closehook = closehook 

66 self.hookargs = hookargs 

67 

68 def close(self): 

69 if self.closehook: 

70 self.closehook(*self.hookargs) 

71 self.closehook = None 

72 self.hookargs = None 

73 addbase.close(self) 

74 

75class addinfo(addbase): 

76 """class to add an info() method to an open file.""" 

77 

78 def __init__(self, fp, headers): 

79 addbase.__init__(self, fp) 

80 self.headers = headers 

81 

82 def info(self): 

83 return self.headers 

84 

85class addinfourl(addbase): 

86 """class to add info() and geturl() methods to an open file.""" 

87 

88 def __init__(self, fp, headers, url, code=None): 

89 addbase.__init__(self, fp) 

90 self.headers = headers 

91 self.url = url 

92 self.code = code 

93 

94 def info(self): 

95 return self.headers 

96 

97 def getcode(self): 

98 return self.code 

99 

100 def geturl(self): 

101 return self.url 

102 

103del absolute_import, division, unicode_literals, object