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annotate lib/python3.8/site-packages/pip/_vendor/urllib3/exceptions.py @ 0:9e54283cc701 draft

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"planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
author guerler
date Mon, 27 Jul 2020 03:47:31 -0400
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1 from __future__ import absolute_import
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2 from .packages.six.moves.http_client import IncompleteRead as httplib_IncompleteRead
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3
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4 # Base Exceptions
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5
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6
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7 class HTTPError(Exception):
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8 "Base exception used by this module."
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9 pass
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11
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12 class HTTPWarning(Warning):
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13 "Base warning used by this module."
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14 pass
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16
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17 class PoolError(HTTPError):
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18 "Base exception for errors caused within a pool."
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19
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20 def __init__(self, pool, message):
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21 self.pool = pool
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22 HTTPError.__init__(self, "%s: %s" % (pool, message))
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23
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24 def __reduce__(self):
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25 # For pickling purposes.
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26 return self.__class__, (None, None)
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29 class RequestError(PoolError):
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30 "Base exception for PoolErrors that have associated URLs."
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31
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32 def __init__(self, pool, url, message):
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33 self.url = url
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34 PoolError.__init__(self, pool, message)
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35
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36 def __reduce__(self):
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37 # For pickling purposes.
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38 return self.__class__, (None, self.url, None)
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40
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41 class SSLError(HTTPError):
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42 "Raised when SSL certificate fails in an HTTPS connection."
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43 pass
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44
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45
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46 class ProxyError(HTTPError):
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47 "Raised when the connection to a proxy fails."
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48 pass
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51 class DecodeError(HTTPError):
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52 "Raised when automatic decoding based on Content-Type fails."
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53 pass
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55
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56 class ProtocolError(HTTPError):
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57 "Raised when something unexpected happens mid-request/response."
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58 pass
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61 #: Renamed to ProtocolError but aliased for backwards compatibility.
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62 ConnectionError = ProtocolError
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63
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64
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65 # Leaf Exceptions
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66
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67
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68 class MaxRetryError(RequestError):
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69 """Raised when the maximum number of retries is exceeded.
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70
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71 :param pool: The connection pool
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72 :type pool: :class:`~urllib3.connectionpool.HTTPConnectionPool`
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73 :param string url: The requested Url
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74 :param exceptions.Exception reason: The underlying error
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75
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76 """
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77
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78 def __init__(self, pool, url, reason=None):
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79 self.reason = reason
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80
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81 message = "Max retries exceeded with url: %s (Caused by %r)" % (url, reason)
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82
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83 RequestError.__init__(self, pool, url, message)
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84
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85
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86 class HostChangedError(RequestError):
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87 "Raised when an existing pool gets a request for a foreign host."
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88
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89 def __init__(self, pool, url, retries=3):
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90 message = "Tried to open a foreign host with url: %s" % url
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91 RequestError.__init__(self, pool, url, message)
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92 self.retries = retries
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93
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94
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95 class TimeoutStateError(HTTPError):
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96 """ Raised when passing an invalid state to a timeout """
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97
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98 pass
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99
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100
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101 class TimeoutError(HTTPError):
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102 """ Raised when a socket timeout error occurs.
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103
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104 Catching this error will catch both :exc:`ReadTimeoutErrors
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105 <ReadTimeoutError>` and :exc:`ConnectTimeoutErrors <ConnectTimeoutError>`.
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106 """
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107
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108 pass
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109
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110
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111 class ReadTimeoutError(TimeoutError, RequestError):
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112 "Raised when a socket timeout occurs while receiving data from a server"
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113 pass
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114
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115
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116 # This timeout error does not have a URL attached and needs to inherit from the
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117 # base HTTPError
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118 class ConnectTimeoutError(TimeoutError):
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119 "Raised when a socket timeout occurs while connecting to a server"
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120 pass
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121
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122
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123 class NewConnectionError(ConnectTimeoutError, PoolError):
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124 "Raised when we fail to establish a new connection. Usually ECONNREFUSED."
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125 pass
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126
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127
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128 class EmptyPoolError(PoolError):
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129 "Raised when a pool runs out of connections and no more are allowed."
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130 pass
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131
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132
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133 class ClosedPoolError(PoolError):
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134 "Raised when a request enters a pool after the pool has been closed."
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135 pass
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136
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137
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138 class LocationValueError(ValueError, HTTPError):
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139 "Raised when there is something wrong with a given URL input."
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140 pass
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141
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142
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143 class LocationParseError(LocationValueError):
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144 "Raised when get_host or similar fails to parse the URL input."
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145
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146 def __init__(self, location):
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147 message = "Failed to parse: %s" % location
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148 HTTPError.__init__(self, message)
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149
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150 self.location = location
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151
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152
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153 class ResponseError(HTTPError):
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154 "Used as a container for an error reason supplied in a MaxRetryError."
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155 GENERIC_ERROR = "too many error responses"
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156 SPECIFIC_ERROR = "too many {status_code} error responses"
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157
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158
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159 class SecurityWarning(HTTPWarning):
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160 "Warned when performing security reducing actions"
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161 pass
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162
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163
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164 class SubjectAltNameWarning(SecurityWarning):
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165 "Warned when connecting to a host with a certificate missing a SAN."
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166 pass
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167
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168
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169 class InsecureRequestWarning(SecurityWarning):
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170 "Warned when making an unverified HTTPS request."
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171 pass
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172
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173
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174 class SystemTimeWarning(SecurityWarning):
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175 "Warned when system time is suspected to be wrong"
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176 pass
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177
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178
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179 class InsecurePlatformWarning(SecurityWarning):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
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180 "Warned when certain SSL configuration is not available on a platform."
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181 pass
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182
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183
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184 class SNIMissingWarning(HTTPWarning):
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185 "Warned when making a HTTPS request without SNI available."
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186 pass
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187
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188
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189 class DependencyWarning(HTTPWarning):
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190 """
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191 Warned when an attempt is made to import a module with missing optional
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192 dependencies.
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193 """
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194
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195 pass
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196
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197
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198 class ResponseNotChunked(ProtocolError, ValueError):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
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199 "Response needs to be chunked in order to read it as chunks."
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200 pass
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201
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202
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203 class BodyNotHttplibCompatible(HTTPError):
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204 """
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205 Body should be httplib.HTTPResponse like (have an fp attribute which
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206 returns raw chunks) for read_chunked().
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207 """
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208
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209 pass
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
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210
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211
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212 class IncompleteRead(HTTPError, httplib_IncompleteRead):
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213 """
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214 Response length doesn't match expected Content-Length
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215
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216 Subclass of http_client.IncompleteRead to allow int value
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217 for `partial` to avoid creating large objects on streamed
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218 reads.
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
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219 """
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220
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221 def __init__(self, partial, expected):
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222 super(IncompleteRead, self).__init__(partial, expected)
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223
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224 def __repr__(self):
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225 return "IncompleteRead(%i bytes read, %i more expected)" % (
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226 self.partial,
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227 self.expected,
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diff changeset
228 )
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229
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230
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231 class InvalidHeader(HTTPError):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
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232 "The header provided was somehow invalid."
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233 pass
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diff changeset
234
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235
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236 class ProxySchemeUnknown(AssertionError, ValueError):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
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237 "ProxyManager does not support the supplied scheme"
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238 # TODO(t-8ch): Stop inheriting from AssertionError in v2.0.
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239
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240 def __init__(self, scheme):
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241 message = "Not supported proxy scheme %s" % scheme
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242 super(ProxySchemeUnknown, self).__init__(message)
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243
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244
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245 class HeaderParsingError(HTTPError):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
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246 "Raised by assert_header_parsing, but we convert it to a log.warning statement."
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247
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248 def __init__(self, defects, unparsed_data):
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249 message = "%s, unparsed data: %r" % (defects or "Unknown", unparsed_data)
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250 super(HeaderParsingError, self).__init__(message)
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251
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252
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253 class UnrewindableBodyError(HTTPError):
9e54283cc701 "planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
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254 "urllib3 encountered an error when trying to rewind a body"
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255 pass