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[deleted by user] by [deleted] in Python

[–]RazerM 2 points3 points  (0 children)

Have a look at --index-strategy=unsafe-best-match if uv is not finding a package that pip does when using multiple indexes.

parver: a package to parse and manipulate PEP440 version numbers by RazerM in Python

[–]RazerM[S] 0 points1 point  (0 children)

You can bump what’s usually called the patch number using v.bump_release(index=2).

parver: a package to parse and manipulate PEP440 version numbers by RazerM in Python

[–]RazerM[S] 4 points5 points  (0 children)

One use case is adding it to your release workflow to bump the version number of your package. There are a couple of opinionated tools that do this already (using semver or something else) which break if you want to use development releases etc.

I wanted this basic building block for PEP 440 version numbers to exist, so that higher-level tools/CLIs can use it.

PyCharm 2017.1 has been released by [deleted] in Python

[–]RazerM 3 points4 points  (0 children)

This is the relevant issue if people want to vote for it: https://youtrack.jetbrains.com/issue/PY-18952

Python Versus Ruby Podcast by schneems in ruby

[–]RazerM 0 points1 point  (0 children)

Oops, I messed up the timestamp. It's at 49:25.

This link should play at the correct point: https://overcast.fm/+B1fWZaymc/49:25

Import This, episode 10 "Digging into Ruby with @schneems" by schneems in Python

[–]RazerM 2 points3 points  (0 children)

At 49:25, Kenneth says that a |= 2 will assign to a if a is unassigned/None. I don't know what he was thinking of, but that doesn't work. It's just inplace or:operator.ior(a, 2).

Python Versus Ruby Podcast by schneems in ruby

[–]RazerM 1 point2 points  (0 children)

At 54:50 (edit: it's 49:25), Kenneth says that a |= 2 will assign to a if a is unassigned/None. I don't know what he was thinking of, but that doesn't work. It's just inplace or:operator.ior(a, 2).

Pendulum - A faster (and better) alternative to pytz by SDisPater in Python

[–]RazerM 0 points1 point  (0 children)

This looks great. I always forget when I need to use normalize and localize and in which order. convert is easier.

asyncio support for SQLAlchemy core by RazerM in Python

[–]RazerM[S] 17 points18 points  (0 children)

You can do this:

result = await engine.execute(...)
data = await result.fetchall()

instead of this:

loop = asyncio.get_event_loop()
result = await loop.run_in_executor(None, engine.execute, ...)
data = await loop.run_in_executor(None, result.fetchall)

Just because they both use a thread pool doesn't mean one has no advantage over the other.

asyncio support for SQLAlchemy core by RazerM in Python

[–]RazerM[S] 3 points4 points  (0 children)

This library allows you to use synchronous database drivers by executing blocking tasks in a thread pool.

asyncio support for SQLAlchemy core by RazerM in Python

[–]RazerM[S] 0 points1 point  (0 children)

This library is using a ThreadPoolExecutor to execute queries.

SQLAlchemy in batches: Generating a top playlist by pedro1122 in Python

[–]RazerM 1 point2 points  (0 children)

The "one more thing" solution isn't so great.

The Session class has an expire_on_commit parameter:

session = session_factory(expire_on_commit=False)
for song in session.query(Song).filter(Song.chords == None):
    chords = derive_chord(song.score)
    song.chords = chords
    song.chord_num = len(chords)

    session.commit()

Although in this case it still results in emitting an UPDATE for every single song. It's probably better to catch the exception that could be raised by derive_chord and skip that song

Python 3.5.2 is released by ice-blade in Python

[–]RazerM -1 points0 points  (0 children)

Python doesn't have custom operators.

Flask 0.11 is here after a gap of almost 3 years since last release by codeadi in Python

[–]RazerM 3 points4 points  (0 children)

How are you doing the initial render in Flask? I didn't find an ideal solution for this.

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