Update pyparsing requirement from ~=2.0 to >=2,<4

[dependabot]

Updates the requirements on pyparsing to permit the latest version.

Release notes

Sourced from pyparsing's releases.

pyparsing 3.0.6

• Added suppress_warning() method to individually suppress a warning on a specific ParserElement. Used to refactor original_text_for to preserve internal results names, which, while undocumented, had been adopted by some projects.

• Fix bug when delimited_list was called with a str literal instead of a parse expression.

Changelog

Sourced from pyparsing's changelog.

Version 3.0.6 -

• Added suppress_warning() method to individually suppress a warning on a specific ParserElement. Used to refactor original_text_for to preserve internal results names, which, while undocumented, had been adopted by some projects.

• Fix bug when delimited_list was called with a str literal instead of a parse expression.

Version 3.0.5 -

• Added return type annotations for col, line, and lineno.

• Fixed bug when warn_ungrouped_named_tokens_in_collection warning was raised when assigning a results name to an original_text_for expression. (Issue #110, would raise warning in packaging.)

• Fixed internal bug where ParserElement.streamline() would not return self if already streamlined.

• Changed run_tests() output to default to not showing line and column numbers. If line numbering is desired, call with with_line_numbers=True. Also fixed minor bug where separating line was not included after a test failure.

Version 3.0.4 -

• Fixed bug in which Dict classes did not correctly return tokens as nested ParseResults, reported by and fix identified by Bu Sun Kim, many thanks!!!

• Documented API-changing side-effect of converting ParseResults to use __slots__ to pre-define instance attributes. This means that code written like this (which was allowed in pyparsing 2.4.7):

  result = Word(alphas).parseString("abc") result.xyz = 100

  now raises this Python exception:

  AttributeError: 'ParseResults' object has no attribute 'xyz'

  To add new attribute values to ParseResults object in 3.0.0 and later, you must assign them using indexed notation:

  result["xyz"] = 100

  You will still be able to access this new value as an attribute or as an indexed item.

... (truncated)

Commits

• 16b766b Add warning suppression detection for all diagnostic warnings
• b429eb6 Update version time for release
• e22d4ca Revert results names for packaging compatibility (#110)
• 85fc927 Add tests written when working on #323
• c93973e Add asserts in unit test
• b0adfe7 Rework version_info to use typing.NamedTuple
• 22f8847 Add debug arg to scan_string, transform_string, search_string
• ebd99e2 Update update_pyparsing_timestamp.py to new code structure
• 14427a5 Get Travis and tox to work better together
• 6bb97cc Make Travis run all tox environments
• Additional commits viewable in compare view

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