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Update pyparsing to 3.3.2#757

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Update pyparsing to 3.3.2#757
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pyup-update-pyparsing-3.2.5-to-3.3.2

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@pyup-bot pyup-bot commented Mar 3, 2026

This PR updates pyparsing from 3.2.5 to 3.3.2.

Changelog

3.3.2

-----------------------------
- Defined pyparsing-specific warning classes so that they can be selectively enabled
or disabled without affecting warnings raised by other libraries in the same Python
app:
- `PyparsingWarning` - base warning for all pyparsing-specific warnings (inherits
 from `UserWarning`)
- `PyparsingDeprecationWarning` - warning for using deprecated features (inherits
 from `PyparsingWarning` and `DeprecationWarning`)
- `PyparsingDiagnosticWarning` - warning raised when pyparsing diagnostics are
 enabled and a diagnostic feature is used (inherits from `PyparsingWarning`)

- Added `as_datetime` parse action to `pyparsing.common` - a more generalized
version of the `convert_to_datetime` parse action (supports any expression that extracts
date/time fields into "year", "month", "day", etc. results names), and validates
that the parsed fields represent a valid date and time.

- Added `iso8601_date_validated` and `iso8601_datetime_validated` expressions to
`pyparsing.common`, which return a Python `datetime.datetime`

- Various performance improvements in `ParseResults` class and core functions, with
10-20% performance overall.

- Added `regex_inverter` web page (using PyScript) to demonstrate using the `inv_regex.py`
example.

- Expanded regex forms handled by the `examples/inv_regex.py` example:
- named capturing groups (`?P<name>`)
- partial repetition (`{m,}` and `{,n}`)
- negated character classes (`[^...]`)

- Added `SPy` (Simplified Python) parser to examples.

3.3.1

------------------------------
- Added license info to metadata, following PEP-639. Thanks to Gedalia Pasternak and
Marc Mueller for submitted issue and PR. Fixes 626.

3.3.0

------------------------------
===========================================================================================
The version 3.3.0 release will begin emitting `DeprecationWarnings` for pyparsing methods
that have been renamed to PEP8-compliant names (introduced in pyparsing 3.0.0, in August,
2021, with legacy names retained as aliases). In preparation, I added in pyparsing
3.2.2 a utility for finding and replacing the legacy method names with the new names.
This utility is located at `pyparsing/tools/cvt_pep8_names.py`. This script will scan all
Python files specified on the command line, and if the `-u` option is selected, will
replace all occurrences of the old method names with the new PEP8-compliant names,
updating the files in place.

Here is an example that converts all the files in the pyparsing `/examples` directory:

   python -m pyparsing.tools.cvt_pyparsing_pep8_names -u examples/*.py

The new names are compatible with pyparsing versions 3.0.0 and later.
===========================================================================================

- Deprecated `indentedBlock`, when converted using the `cvt_pyparsing_pep8_names`
utility, will emit `UserWarnings` that additional code changes will be required.
This is because the new `IndentedBlock` class no longer requires the calling code
to supply an indent stack, while adding support for nested indentation levels
and grouping.

- Deprecated `locatedExpr`, when converted using the `cvt_pyparsing_pep8_names`
utility, will emit `UserWarnings` that additional code changes may be required.
The new `Located` class removes the extra grouping level of the parsed values.
(If the original `locatedExpr` parser was defined with a results name, then
the extra grouping is retained, so that the results name nesting works properly;
in this case, no code changes would be required.)

- Updated all examples and test cases to use PEP8 names (unless the test case is specifically
designed to test behavior of a legacy method). Added railroad diagrams for some examples.

- Added exception handling when calling `formatted_message()`, so that `str(exception)`
always returns at least _something_.

- All unit tests pass with Python 3.14, including 3.14t. This does _not_ necessarily
mean that pyparsing is now thread-safe, just that when run in the free-threaded
interpreter, there were no errors. None of the unit tests try to do any parsing
with multiple threads - they test the basic functionality of the library, under various
versions of packrat and left-recursive parsing.

- Added AI instructions so that AI agents can be prompted with best practices
for generating parsers using pyparsing code. These instructions are in the
`ai/best_practices.md` file, and can be accessed programmatically by calling
`pyparsing.show_best_practices()` or running `python -m pyparsing.ai.show_best_practices`
from the command line, after installing the `pyparsing` package.

- Implemented a TINY language parser/interpreter using pyparsing, in the `examples/tiny`
directory. This is a little tutorial language that I used to demonstrate how to use pyparsing to
build a simple interpreter, following a recommended parser+AST+engine+run structure.
The `docs` sub-directory also includes transcripts of the AI session used to create the
parser and the interpreter. The `samples` sub-directory includes a few sample TINY programs.

- Fixed minor formatting bugs in `pyparsing.testing.with_line_numbers`, found during development
of the TINY language example.

- Added test in `DelimitedList` and `nested_expr` which auto-suppress delimiting commas to
avoid wrapping in a `Suppress` if delimiter is already a `Suppress`.

- Added performance benchmarking tools and documentation:
- `tests/perf_pyparsing.py` runs a series of benchmark parsing tests, exercising different
 aspects of the pyparsing package. For cross-version analysis, this script can export
 results as CSV and append to a consolidated data file.
- Runner scripts `run_perf_all_tags.bat` (Windows) and `run_perf_all_tags.sh` (Ubuntu/bash)
 execute the benchmark across multiple Python versions (3.9–3.14) and pyparsing versions
 (3.1.1 through 3.3.0), aggregating results into `perf_pyparsing.csv` at the repo root.
- See `tests/README.md` for usage instructions.

- Used performance benchmarking to identify and revert an inefficient utility method used in
`transform_string` (introduced in pyparsing 3.2.0b2).
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