Update click requirement from <7,>=6.6 to >=6.6,<9

[dependabot-preview]

Updates the requirements on click to permit the latest version.

Changelog

Sourced from click's changelog.

Version 8.0.0

Released 2021-05-11

• Drop support for Python 2 and 3.5.
• Colorama is always installed on Windows in order to provide style and color support. 1784
• Adds a repr to Command, showing the command name for friendlier debugging. 1267, 1295
• Add support for distinguishing the source of a command line parameter. 1264, 1329
• Add an optional parameter to ProgressBar.update to set the current_item. 1226, 1332
• version_option uses importlib.metadata (or the importlib_metadata backport) instead of pkg_resources. 1582
• If validation fails for a prompt with hide_input=True, the value is not shown in the error message. 1460
• An IntRange or FloatRange option shows the accepted range in its help text. 1525, 1303
• IntRange and FloatRange bounds can be open (<) instead of closed (<=) by setting min_open and max_open. Error messages have changed to reflect this. 1100
• An option defined with duplicate flag names ("--foo/--foo") raises a ValueError. 1465
• echo() will not fail when using pytest's capsys fixture on Windows. 1590
• Resolving commands returns the canonical command name instead of the matched name. This makes behavior such as help text and Context.invoked_subcommand consistent when using patterns like AliasedGroup. 1422
• The BOOL type accepts the values "on" and "off". 1629
• A Group with invoke_without_command=True will always invoke its result callback. 1178
• nargs == -1 and nargs > 1 is parsed and validated for values from environment variables and defaults. 729
• Detect the program name when executing a module or package with python -m name. 1603
• Include required parent arguments in help synopsis of subcommands. 1475
• Help for boolean flags with show_default=True shows the flag name instead of True or False. 1538
• Non-string objects passed to style() and secho() will be converted to string. 1146
• edit(require_save=True) will detect saves for editors that exit very fast on filesystems with 1 second resolution. 1050
• New class attributes make it easier to use custom core objects throughout an entire application. 938
  • Command.context_class controls the context created when running the command.
  • Context.invoke creates new contexts of the same type, so a custom type will persist to invoked subcommands.
  • Context.formatter_class controls the formatter used to generate help and usage.
  • Group.command_class changes the default type for subcommands with @group.command().
  • Group.group_class changes the default type for subgroups with @group.group(). Setting it to type will create subgroups of the same type as the group itself.
  • Core objects use super() consistently for better support of subclassing.
• Use Context.with_resource() to manage resources that would normally be used in a with statement, allowing them to be used across subcommands and callbacks, then cleaned up when the context ends. 1191
• The result object returned by the test runner's invoke() method has a return_value attribute with the value returned by the invoked command. 1312
• Required arguments with the Choice type show the choices in curly braces to indicate that one is required ({a|b|c}). 1272
• If only a name is passed to option(), Click suggests renaming it to --name. 1355
• A context's show_default parameter defaults to the value from the parent context. 1565
• click.style() can output 256 and RGB color codes. Most modern terminals support these codes. 1429
• When using CliRunner.invoke(), the replaced stdin file has name and mode attributes. This lets File options with the - value match non-testing behavior. 1064
• When creating a Group, allow passing a list of commands instead of a dict. 1339
• When a long option name isn't valid, use difflib to make better suggestions for possible corrections. 1446
• Core objects have a to_info_dict() method. This gathers information about the object's structure that could be useful for a tool generating user-facing documentation. To get the structure of an entire CLI, use Context(cli).to_info_dict(). 461
• Redesign the shell completion system. 1484, 1622
  • Support Bash >= 4.4, Zsh, and Fish, with the ability for extensions to add support for other shells.
  • Allow commands, groups, parameters, and types to override their completions suggestions.
  • Groups complete the names commands were registered with, which can differ from the name they were created with.
  • The autocompletion parameter for options and arguments is renamed to shell_complete. The function must take ctx, param, incomplete, must do matching rather than return all values, and must return a list of strings or a list of ShellComplete. The old name and behavior is deprecated and will be removed in 8.1.
  • The env var values used to start completion have changed order. The shell now comes first, such as {shell}_source rather than source_{shell}, and is always required.
• Completion correctly parses command line strings with incomplete quoting or escape sequences. 1708
• Extra context settings (obj=..., etc.) are passed on to the completion system. 942

... (truncated)

Commits

• 9da1669 Merge pull request #1877 from pallets/release-8.0.0
• dfa6369 release version 8.0.0
• b862cb1 update requirements
• f51584c Merge pull request #1876 from pallets/pre-commit-ci-schedule
• 804c71c update pre-commit monthly
• ac655f8 Merge pull request #1872 from janLuke/fix/formatter_write_text
• dcd991d HelpFormatter.write_text uses full width
• 5215fc1 Merge pull request #1870 from AdrienPensart/allow_colors_in_metavar
• e3e1691 repr is erasing ANSI escapes codes
• 482e6e6 Merge pull request #1875 from pallets/pre-commit-ci-update-config
• Additional commits viewable in compare view

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