1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
# __
# /__) _ _ _ _ _/ _
# / ( (- (/ (/ (- _) / _)
# /
"""
Requests HTTP Library
~~~~~~~~~~~~~~~~~~~~~
Requests is an HTTP library, written in Python, for human beings.
Basic GET usage:
>>> import requests
>>> r = requests.get('https://www.python.org')
>>> r.status_code
200
>>> b'Python is a programming language' in r.content
True
... or POST:
>>> payload = dict(key1='value1', key2='value2')
>>> r = requests.post('https://httpbin.org/post', data=payload)
>>> print(r.text)
{
...
"form": {
"key1": "value1",
"key2": "value2"
},
...
}
The other HTTP methods are supported - see `requests.api`. Full documentation
is at <https://requests.readthedocs.io>.
:copyright: (c) 2017 by Kenneth Reitz.
:license: Apache 2.0, see LICENSE for more details.
"""
import warnings
from pip._vendor import urllib3
from .exceptions import RequestsDependencyWarning
charset_normalizer_version = None
try:
from pip._vendor.chardet import __version__ as chardet_version
except ImportError:
chardet_version = None
def check_compatibility(urllib3_version, chardet_version, charset_normalizer_version):
urllib3_version = urllib3_version.split(".")
assert urllib3_version != ["dev"] # Verify urllib3 isn't installed from git.
# Sometimes, urllib3 only reports its version as 16.1.
if len(urllib3_version) == 2:
urllib3_version.append("0")
# Check urllib3 for compatibility.
major, minor, patch = urllib3_version # noqa: F811
major, minor, patch = int(major), int(minor), int(patch)
# urllib3 >= 1.21.1, <= 1.26
assert major == 1
assert minor >= 21
assert minor <= 26
# Check charset_normalizer for compatibility.
if chardet_version:
major, minor, patch = chardet_version.split(".")[:3]
major, minor, patch = int(major), int(minor), int(patch)
# chardet_version >= 3.0.2, < 6.0.0
assert (3, 0, 2) <= (major, minor, patch) < (6, 0, 0)
elif charset_normalizer_version:
major, minor, patch = charset_normalizer_version.split(".")[:3]
major, minor, patch = int(major), int(minor), int(patch)
# charset_normalizer >= 2.0.0 < 3.0.0
assert (2, 0, 0) <= (major, minor, patch) < (3, 0, 0)
else:
raise Exception("You need either charset_normalizer or chardet installed")
def _check_cryptography(cryptography_version):
# cryptography < 1.3.4
try:
cryptography_version = list(map(int, cryptography_version.split(".")))
except ValueError:
return
if cryptography_version < [1, 3, 4]:
warning = "Old version of cryptography ({}) may cause slowdown.".format(
cryptography_version
)
warnings.warn(warning, RequestsDependencyWarning)
# Check imported dependencies for compatibility.
try:
check_compatibility(
urllib3.__version__, chardet_version, charset_normalizer_version
)
except (AssertionError, ValueError):
warnings.warn(
"urllib3 ({}) or chardet ({})/charset_normalizer ({}) doesn't match a supported "
"version!".format(
urllib3.__version__, chardet_version, charset_normalizer_version
),
RequestsDependencyWarning,
)
# Attempt to enable urllib3's fallback for SNI support
# if the standard library doesn't support SNI or the
# 'ssl' library isn't available.
try:
# Note: This logic prevents upgrading cryptography on Windows, if imported
# as part of pip.
from pip._internal.utils.compat import WINDOWS
if not WINDOWS:
raise ImportError("pip internals: don't import cryptography on Windows")
try:
import ssl
except ImportError:
ssl = None
if not getattr(ssl, "HAS_SNI", False):
from pip._vendor.urllib3.contrib import pyopenssl
pyopenssl.inject_into_urllib3()
# Check cryptography version
from cryptography import __version__ as cryptography_version
_check_cryptography(cryptography_version)
except ImportError:
pass
# urllib3's DependencyWarnings should be silenced.
from pip._vendor.urllib3.exceptions import DependencyWarning
warnings.simplefilter("ignore", DependencyWarning)
# Set default logging handler to avoid "No handler found" warnings.
import logging
from logging import NullHandler
from . import packages, utils
from .__version__ import (
__author__,
__author_email__,
__build__,
__cake__,
__copyright__,
__description__,
__license__,
__title__,
__url__,
__version__,
)
from .api import delete, get, head, options, patch, post, put, request
from .exceptions import (
ConnectionError,
ConnectTimeout,
FileModeWarning,
HTTPError,
JSONDecodeError,
ReadTimeout,
RequestException,
Timeout,
TooManyRedirects,
URLRequired,
)
from .models import PreparedRequest, Request, Response
from .sessions import Session, session
from .status_codes import codes
logging.getLogger(__name__).addHandler(NullHandler())
# FileModeWarnings go off per the default.
warnings.simplefilter("default", FileModeWarning, append=True)
|
