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How do I write a Python dictionary to a csv file? [duplicate]
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Small addition: You can easily print a subset of a dict by using csv.DictWriter(f, ["testing"], extrasaction='ignore')
– Dawodo
Sep 19 '16 at 16:55
add a co...
Temporarily change current working directory in bash to run a command [duplicate]
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You can run the cd and the executable in a subshell by enclosing the command line in a pair of parentheses:
(cd SOME_PATH && exec_some_command)
Demo:
$ pwd
/home/abhijit
$ (cd /tmp && pwd) # directory changed in the subshell
/tmp
$ pwd # par...
What is the difference between tar and zip? [closed]
...s); the advantage is that you can access any of the files contained within by looking at only a specific (target file dependent) section of the archive (as the "catalog" of the collection is separate from the collection itself).
The caveat of a .tar.gz is that you must decompress the whole archive t...
How to remove and clear all localStorage data [duplicate]
I need to clear all data i set into localStorage . By this, I mean completely reset localStorage to null when users remove their accounts.
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What does the 'u' symbol mean in front of string values? [duplicate]
...ct that you're seeing the u means you're on Python 2 - strings are Unicode by default on Python 3, but on Python 2, the u in front distinguishes Unicode strings. The rest of this answer will focus on Python 2.
You can create a Unicode string multiple ways:
>>> u'foo'
u'foo'
>>> uni...
Loop through list with both content and index [duplicate]
...her words, you can specify as starting value for the index/count generated by enumerate() which comes in handy if you don't want your index to start with the default value of zero.
I was printing out lines in a file the other day and specified the starting value as 1 for enumerate(), which made mor...
What is the Python equivalent for a case/switch statement? [duplicate]
... in a constant string in quotes then eval it. 1) code doesn't get checked by your editor for validity. 2) it doesn't get optimised to bytecode at compilation. 3) you can't see syntax highlighting. 4) fiddly if you have multiple quotes - indeed your comment needs escaping! If you want brevity, you ...
How to merge multiple lists into one list in python? [duplicate]
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You could also pass it as an *args by saying: itertools.chain(*my_list_of_lists).
– Oxcug
Jul 21 '17 at 19:39
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Too much data with var_dump in symfony2 doctrine2
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Replace var_dump() with the debug method dump() provided by Doctrine Common.
\Doctrine\Common\Util\Debug::dump($user);
It works for single objects and Doctrine collections and should prevent browser displaying issues you are having.
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ffmpeg - Converting MOV files to MP4 [closed]
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The command to just stream it to a new container (mp4) needed by some applications like Adobe Premiere Pro without encoding (fast) is:
ffmpeg -i movie.mov -vcodec copy -acodec copy out.mp4
Alternative as mentioned in the comments, which re-encodes with best quaility (-qscale 0):
ffm...