Mercurial > repos > shellac > guppy_basecaller

annotate env/lib/python3.7/site-packages/click/exceptions.py @ 0:26e78fe6e8c4 draft

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"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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1 from ._compat import filename_to_ui
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2 from ._compat import get_text_stderr
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3 from ._compat import PY2
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4 from .utils import echo
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5
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6
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7 def _join_param_hints(param_hint):
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8 if isinstance(param_hint, (tuple, list)):
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9 return " / ".join(repr(x) for x in param_hint)
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10 return param_hint
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11
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12
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13 class ClickException(Exception):
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14 """An exception that Click can handle and show to the user."""
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15
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16 #: The exit code for this exception
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17 exit_code = 1
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18
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19 def __init__(self, message):
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20 ctor_msg = message
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21 if PY2:
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22 if ctor_msg is not None:
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23 ctor_msg = ctor_msg.encode("utf-8")
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24 Exception.__init__(self, ctor_msg)
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25 self.message = message
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26
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27 def format_message(self):
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28 return self.message
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29
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30 def __str__(self):
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31 return self.message
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32
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33 if PY2:
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34 __unicode__ = __str__
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35
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36 def __str__(self):
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37 return self.message.encode("utf-8")
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38
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39 def show(self, file=None):
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40 if file is None:
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41 file = get_text_stderr()
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42 echo("Error: {}".format(self.format_message()), file=file)
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43
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44
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45 class UsageError(ClickException):
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46 """An internal exception that signals a usage error. This typically
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47 aborts any further handling.
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48
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49 :param message: the error message to display.
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50 :param ctx: optionally the context that caused this error. Click will
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51 fill in the context automatically in some situations.
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52 """
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53
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54 exit_code = 2
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55
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56 def __init__(self, message, ctx=None):
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57 ClickException.__init__(self, message)
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58 self.ctx = ctx
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59 self.cmd = self.ctx.command if self.ctx else None
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60
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61 def show(self, file=None):
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62 if file is None:
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63 file = get_text_stderr()
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64 color = None
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65 hint = ""
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66 if self.cmd is not None and self.cmd.get_help_option(self.ctx) is not None:
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67 hint = "Try '{} {}' for help.\n".format(
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68 self.ctx.command_path, self.ctx.help_option_names[0]
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69 )
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70 if self.ctx is not None:
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71 color = self.ctx.color
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72 echo("{}\n{}".format(self.ctx.get_usage(), hint), file=file, color=color)
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73 echo("Error: {}".format(self.format_message()), file=file, color=color)
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74
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75
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76 class BadParameter(UsageError):
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77 """An exception that formats out a standardized error message for a
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78 bad parameter. This is useful when thrown from a callback or type as
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79 Click will attach contextual information to it (for instance, which
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80 parameter it is).
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81
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82 .. versionadded:: 2.0
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83
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84 :param param: the parameter object that caused this error. This can
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85 be left out, and Click will attach this info itself
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86 if possible.
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87 :param param_hint: a string that shows up as parameter name. This
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88 can be used as alternative to `param` in cases
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89 where custom validation should happen. If it is
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90 a string it's used as such, if it's a list then
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91 each item is quoted and separated.
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92 """
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93
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94 def __init__(self, message, ctx=None, param=None, param_hint=None):
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95 UsageError.__init__(self, message, ctx)
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96 self.param = param
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97 self.param_hint = param_hint
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98
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99 def format_message(self):
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100 if self.param_hint is not None:
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101 param_hint = self.param_hint
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102 elif self.param is not None:
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103 param_hint = self.param.get_error_hint(self.ctx)
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104 else:
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105 return "Invalid value: {}".format(self.message)
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106 param_hint = _join_param_hints(param_hint)
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107
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108 return "Invalid value for {}: {}".format(param_hint, self.message)
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109
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110
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111 class MissingParameter(BadParameter):
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112 """Raised if click required an option or argument but it was not
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113 provided when invoking the script.
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114
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115 .. versionadded:: 4.0
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116
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117 :param param_type: a string that indicates the type of the parameter.
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118 The default is to inherit the parameter type from
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119 the given `param`. Valid values are ``'parameter'``,
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120 ``'option'`` or ``'argument'``.
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121 """
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122
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123 def __init__(
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124 self, message=None, ctx=None, param=None, param_hint=None, param_type=None
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125 ):
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126 BadParameter.__init__(self, message, ctx, param, param_hint)
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127 self.param_type = param_type
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128
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129 def format_message(self):
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130 if self.param_hint is not None:
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131 param_hint = self.param_hint
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132 elif self.param is not None:
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133 param_hint = self.param.get_error_hint(self.ctx)
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134 else:
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135 param_hint = None
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136 param_hint = _join_param_hints(param_hint)
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137
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138 param_type = self.param_type
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139 if param_type is None and self.param is not None:
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140 param_type = self.param.param_type_name
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141
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142 msg = self.message
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143 if self.param is not None:
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144 msg_extra = self.param.type.get_missing_message(self.param)
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145 if msg_extra:
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146 if msg:
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147 msg += ". {}".format(msg_extra)
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148 else:
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149 msg = msg_extra
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150
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151 return "Missing {}{}{}{}".format(
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152 param_type,
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153 " {}".format(param_hint) if param_hint else "",
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154 ". " if msg else ".",
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155 msg or "",
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156 )
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157
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158 def __str__(self):
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159 if self.message is None:
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160 param_name = self.param.name if self.param else None
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161 return "missing parameter: {}".format(param_name)
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162 else:
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163 return self.message
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164
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165 if PY2:
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166 __unicode__ = __str__
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167
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168 def __str__(self):
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169 return self.__unicode__().encode("utf-8")
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170
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171
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172 class NoSuchOption(UsageError):
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173 """Raised if click attempted to handle an option that does not
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174 exist.
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175
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176 .. versionadded:: 4.0
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177 """
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178
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179 def __init__(self, option_name, message=None, possibilities=None, ctx=None):
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180 if message is None:
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181 message = "no such option: {}".format(option_name)
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182 UsageError.__init__(self, message, ctx)
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183 self.option_name = option_name
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184 self.possibilities = possibilities
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185
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186 def format_message(self):
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187 bits = [self.message]
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188 if self.possibilities:
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189 if len(self.possibilities) == 1:
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190 bits.append("Did you mean {}?".format(self.possibilities[0]))
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191 else:
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192 possibilities = sorted(self.possibilities)
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193 bits.append("(Possible options: {})".format(", ".join(possibilities)))
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194 return " ".join(bits)
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195
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196
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197 class BadOptionUsage(UsageError):
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198 """Raised if an option is generally supplied but the use of the option
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199 was incorrect. This is for instance raised if the number of arguments
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200 for an option is not correct.
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201
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202 .. versionadded:: 4.0
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203
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204 :param option_name: the name of the option being used incorrectly.
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205 """
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206
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207 def __init__(self, option_name, message, ctx=None):
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208 UsageError.__init__(self, message, ctx)
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209 self.option_name = option_name
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210
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211
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212 class BadArgumentUsage(UsageError):
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213 """Raised if an argument is generally supplied but the use of the argument
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214 was incorrect. This is for instance raised if the number of values
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215 for an argument is not correct.
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216
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217 .. versionadded:: 6.0
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218 """
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219
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220 def __init__(self, message, ctx=None):
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221 UsageError.__init__(self, message, ctx)
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222
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223
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224 class FileError(ClickException):
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225 """Raised if a file cannot be opened."""
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226
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227 def __init__(self, filename, hint=None):
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228 ui_filename = filename_to_ui(filename)
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229 if hint is None:
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230 hint = "unknown error"
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231 ClickException.__init__(self, hint)
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232 self.ui_filename = ui_filename
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233 self.filename = filename
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234
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235 def format_message(self):
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236 return "Could not open file {}: {}".format(self.ui_filename, self.message)
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237
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238
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239 class Abort(RuntimeError):
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240 """An internal signalling exception that signals Click to abort."""
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241
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242
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243 class Exit(RuntimeError):
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244 """An exception that indicates that the application should exit with some
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245 status code.
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246
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247 :param code: the status code to exit with.
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248 """
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249
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250 __slots__ = ("exit_code",)
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251
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252 def __init__(self, code=0):
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253 self.exit_code = code