- *Major packrat upgrade*, inspired by patch provided by Tal Einat -
many, many, thanks to Tal for working on this! Tal's tests show
faster parsing performance (2X in some tests), *and* memory reduction
from 3GB down to ~100MB! Requires no changes to existing code using
packratting. (Uses OrderedDict, available in Python 2.7 and later.
For Python 2.6 users, will attempt to import from ordereddict
backport. If not present, will implement pure-Python Fifo dict.)
- Minor API change - to better distinguish between the flexible
numeric types defined in pyparsing_common, I've changed "numeric"
(which parsed numbers of different types and returned int for ints,
float for floats, etc.) and "number" (which parsed numbers of int
or float type, and returned all floats) to "number" and "fnumber"
respectively. I hope the "f" prefix of "fnumber" will be a better
indicator of its internal conversion of parsed values to floats,
while the generic "number" is similar to the flexible number syntax
in other languages. Also fixed a bug in pyparsing_common.numeric
(now renamed to pyparsing_common.number), integers were parsed and
returned as floats instead of being retained as ints.
- Fixed bug in upcaseTokens and downcaseTokens introduced in 2.1.5,
when the parse action was used in conjunction with results names.
Reported by Steven Arcangeli from the dql project, thanks for your
patience, Steven!
- Major change to docs! After seeing some comments on reddit about
general issue with docs of Python modules, and thinking that I'm a
little overdue in doing some doc tuneup on pyparsing, I decided to
following the suggestions of the redditor and add more inline examples
to the pyparsing reference documentation. I hope this addition
will clarify some of the more common questions people have, especially
when first starting with pyparsing/Python.
- Deprecated ParseResults.asXML. I've never been too happy with this
method, and it usually forces some unnatural code in the parsers in
order to get decent tag names. The amount of guesswork that asXML
has to do to try to match names with values should have been a red
flag from day one. If you are using asXML, you will need to implement
your own ParseResults->XML serialization. Or consider migrating to
a more current format such as JSON (which is very easy to do:
results_as_json = json.dumps(parse_result.asDict()) Hopefully, when
I remove this code in a future version, I'll also be able to simplify
some of the craziness in ParseResults, which IIRC was only there to try
to make asXML work.
- Updated traceParseAction parse action decorator to show the repr
of the input and output tokens, instead of the str format, since
str has been simplified to just show the token list content.
(The change to ParseResults.__str__ occurred in pyparsing 2.0.4, but
it seems that didn't make it into the release notes - sorry! Too
many users, especially beginners, were confused by the
"([token_list], {names_dict})" str format for ParseResults, thinking
they were getting a tuple containing a list and a dict. The full form
can be seen if using repr().)
For tracing tokens in and out of parse actions, the more complete
repr form provides important information when debugging parse actions.
1.0.1
-----
Make sure this works out of the box (is enabled by default) with
Flake8 3.0
1.0.0
-----
Switch dependency name to pydocstyle. pep257 was renamed to pydocstyle,
this update switches the requirement to that new package name. Since
we’re swapping out dependencies, we’ve issued a major version bump.
We've had many checks disabled - these are the ones we actually lose:
L104
Docstrings must use Napoleon, not reStructuredText fields.
L205
__init__.py is not allowed to contain function or class definitions.
L206
Implicit relative imports are not allowed.
L208
Pokémon exception handling is always a mistake. If the intent is
really to catch and ignore exceptions, explicitly name which
exception types to silence.
L209
return, del, raise, assert, print (in python 2, without
print_function) yield, and yield from are statements, not functions,
and as such, do not require parentheses.
L210
Instead of intentionally relying on the side effects of map, filter,
or a comprehension, write an explicit for loop.
L211
Using map or filter with a lambda as the first argument is always
better written as list comprehension or generator expression. An
expression is more readable and extensible, and less importantly,
doesn't incur as much function call overhead.
L212
Using @staticmethod is always wrong.
L301
Files must end with a trailing newline.
L303
noqa is ignored, and as such, # noqa comments should be deleted to
reduce pointless noise.
However, most of those are also checked by pylint (and the rest I don't
really care about), and ebb-lint increases flake8's runtime a lot
(45s -> almost 2min).
- Microsoft Windows filename selector fixes, with Appveyor CI testing
- Allow multiple codes to be disabled by per-line comments
- Allow comment after each rule line
- Prevent use with flake8 v3
- Support both pep8 and pycodestyle in test suite
- Rename pep8 to pycodestyle.
- Add support for python 3.5.
- Add flake8 pypi classifier.
- Drop python 3.3 and 3.4 support (only testing it probably works just
fine).
- Fix travis and coveralls to work properly with python 3.5.
- I201 rule that allows you to configure complaining about certain
modules being imported, e.g. if you are moving from Python 2 to 3 you
could stop urlparse being imported in favour of
six.moves.urllib.parse.
- Update the config files to search for to include setup.cfg and
tox.ini. This was broken in 2.5.5 when we stopped passing config_file
to our Style Guide
flake8 2.6.0
------------
- Switch to pycodestyle as all future pep8 releases will use that
package name
- Allow for Windows users on select versions of Python to use --jobs and
multiprocessing
- Update bounds on McCabe
- Update bounds on PyFlakes and blacklist known broken versions
- Handle new PyFlakes warning with a new error code: F405
flake8-copyright 0.1.1
----------------------
- Set line & column to 1,1 to avoid a flake8 error
- Support multi-year copyright notices
flake8-docstrings 0.2.8
-----------------------
- Try to import pydocstyle (not pycodestyle) as pep257
- Import either pycodestyle or pep8 to use stdin_get_value. This fixes
the problem for newer Flake8’s (2.6.0+) and older ones.
pycodestyle 2.0.0
-----------------
Announcements:
- Repository renamed to `pycodestyle`
- Added joint Code of Conduct as member of PyCQA
Changes:
- Added tox test support for Python 3.5 and pypy3
- Added check E275 for whitespace on `from ... import ...` lines
- Added W503 to the list of codes ignored by default ignore list
- Removed use of project level `.pep8` configuration file
Bugs:
- Fixed bug with treating `~` operator as binary
- Identify binary operators as unary
Other changes
-------------
- Unpin mccabe as the flake8 requirement got updated
- Pin pep8 as an older version gets installed otherwise
- DIsable D403 warning (false-positivies)
- Added ParserElement.split() generator method, similar to re.split().
Includes optional arguments maxsplit (to limit the number of splits),
and includeSeparators (to include the separating matched text in the
returned output, default=False).
- Added a new parse action construction helper tokenMap, which will
apply a function and optional arguments to each element in a
ParseResults. So this parse action:
def lowercase_all(tokens):
return [str(t).lower() for t in tokens]
OneOrMore(Word(alphas)).setParseAction(lowercase_all)
can now be written:
OneOrMore(Word(alphas)).setParseAction(tokenMap(str.lower))
Also simplifies writing conversion parse actions like:
integer = Word(nums).setParseAction(lambda t: int(t[0]))
to just:
integer = Word(nums).setParseAction(tokenMap(int))
If additional arguments are necessary, they can be included in the
call to tokenMap, as in:
hex_integer = Word(hexnums).setParseAction(tokenMap(int, 16))
- Added more expressions to pyparsing_common:
. IPv4 and IPv6 addresses (including long, short, and mixed forms
of IPv6)
. MAC address
. ISO8601 date and date time strings (with named fields for year, month, etc.)
. UUID (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)
. hex integer (returned as int)
. fraction (integer '/' integer, returned as float)
. mixed integer (integer '-' fraction, or just fraction, returned as float)
. stripHTMLTags (parse action to remove tags from HTML source)
. parse action helpers convertToDate and convertToDatetime to do custom parse
time conversions of parsed ISO8601 strings
- runTests now returns a two-tuple: success if all tests succeed,
and an output list of each test and its output lines.
- Added failureTests argument (default=False) to runTests, so that
tests can be run that are expected failures, and runTests' success
value will return True only if all tests *fail* as expected. Also,
parseAll now defaults to True.
- New example numerics.py, shows samples of parsing integer and real
numbers using locale-dependent formats:
4.294.967.295,000
4 294 967 295,000
4,294,967,295.000
- Do not ignore imports which are present and have been added after the
minimum version
- Ignore imports which became mandatory with the minimum version
- Add two older future imports
- Issue an error when a future import does not exist
- Define which is the oldest Python version to be supported so that
already mandatory features can be ignored and not yet supported
features default to forbidden (ignoring the lower error code).
- Use return code of 1 if errors occurred
While this makes things a little more complicated and means we'll need to use
`-r` to recreate tox environments, it has several advantages:
- Full support from requires.io (including PRs)
- Workaround for https://bitbucket.org/hpk42/tox/issues/332/ so we can update
virtualenv/pip
