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Should import statements always be at the top of a module?
...l the method is called.
Added Note: In IronPython, imports can be quite a bit more expensive than in CPython because the code is basically being compiled as it's being imported.
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TypeError: 'NoneType' object is not iterable in Python
...y stuff
return1, return2, return3 = foo(dict_of_dicts)
This is a little bit of a tough error to spot because the error can also be produced if the row variable happens to be None on one of the iterations. The way to spot it is that the trace fails on the last line and not inside the function.
If...
PDO closing connection
...but that is not the truth for mysql. The connection will stay around for a bit longer (Ive heard 60s, but never tested it)
If you want to here the full explanation see this comment on the connections https://www.php.net/manual/en/pdo.connections.php#114822
To force the close the connection you hav...
How do I format a date in Jinja2?
... More code to write = more code to be maintained = more code to be parsed, bit-cached (if used) and interpreted. One of the big advantages of using Jinja2 is the ability of writing small python code inside the template. Some of the performance gains, compared to Django's template system, comes from ...
Add new field to every document in a MongoDB collection
...or Mongo versions prior to 2.2. For latest versions the query is changed a bit
db.your_collection.update({},
{$set : {"new_field":1}},
{upsert:false,
multi:true})
...
Underscore: sortBy() based on multiple attributes
...opy;
}
Out of boredom, I just wrote a general solution (to sort by any arbitrary number of keys) for this as well: have a look.
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Get ffmpeg information in friendly way
...
A bit late, but perhaps still relevant to someone..
ffprobe is indeed an excellent way to go. Note, though, that you need to tell ffprobe what information you want it to display (with the -show_format, -show_packets and -show_...
Swift performSelector:withObject:afterDelay: is unavailable [duplicate]
...tor:afterDelay: and NSTimer work on run loops.
– user102008
Aug 27 '14 at 19:26
4
You should pass...
How to swap keys and values in a hash
...
Can you bit explain the answer what's happening in each step?
– Sajjad Murtaza
May 7 '19 at 23:08
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How can I list all the deleted files in a Git repository?
...lete
– Michael Große
Jun 30 '16 at 10:53
2
Beware using grep delete because if the commit messag...