micropython/tests/extmod/re_sub_unmatched.py

# test re.sub with unmatched groups, behaviour changed in CPython 3.5

try:
    import re
except ImportError:
    print("SKIP")
    raise SystemExit

try:
    re.sub
except AttributeError:
    print("SKIP")
    raise SystemExit

# first group matches, second optional group doesn't so is replaced with a blank
print(re.sub(r"(a)(b)?", r"\2-\1", "1a2"))
extmod/modure: Add ure.sub() function and method, and tests. This feature is controlled at compile time by MICROPY_PY_URE_SUB, disabled by default. Thanks to @dmazzella for the original patch for this feature; see #3770. 7 years ago			`# test re.sub with unmatched groups, behaviour changed in CPython 3.5`

			`try:`
tests: Replace umodule with module everywhere. This work was funded through GitHub Sponsors. Signed-off-by: Jim Mussared <jim.mussared@gmail.com> 2 years ago			`import re`
extmod/modure: Add ure.sub() function and method, and tests. This feature is controlled at compile time by MICROPY_PY_URE_SUB, disabled by default. Thanks to @dmazzella for the original patch for this feature; see #3770. 7 years ago			`except ImportError:`
tests: Replace umodule with module everywhere. This work was funded through GitHub Sponsors. Signed-off-by: Jim Mussared <jim.mussared@gmail.com> 2 years ago			`print("SKIP")`
			`raise SystemExit`
extmod/modure: Add ure.sub() function and method, and tests. This feature is controlled at compile time by MICROPY_PY_URE_SUB, disabled by default. Thanks to @dmazzella for the original patch for this feature; see #3770. 7 years ago
			`try:`
			`re.sub`
			`except AttributeError:`
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren't changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting. 5 years ago			`print("SKIP")`
extmod/modure: Add ure.sub() function and method, and tests. This feature is controlled at compile time by MICROPY_PY_URE_SUB, disabled by default. Thanks to @dmazzella for the original patch for this feature; see #3770. 7 years ago			`raise SystemExit`

			`# first group matches, second optional group doesn't so is replaced with a blank`
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren't changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting. 5 years ago			`print(re.sub(r"(a)(b)?", r"\2-\1", "1a2"))`