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How to clear variables in ipython?
Sometimes I rerun a script within the same ipython session and I get bad surprises when variables haven't been cleared. How do I clear all variables?
And is it possible to force this somehow every time I invoke the magic command %run?
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When is a Java method name too long? [closed]
...the behaviour but also keep the project's and language's convention. So in Python you might say eligible_items_cnt but in Java you usually say getEligibleItemsCount.
– flybywire
Feb 9 '10 at 17:14
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Regex lookahead, lookbehind and atomic groups
...n't support look-behind assertions. And most flavors that support it (PHP, Python etc) require that look-behind portion to have a fixed length.
Atomic groups basically discards/forgets the subsequent tokens in the group once a token matches. Check this page for examples of atomic groups
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How to remove trailing whitespace of all files recursively?
...d (I did)!
You can use -prune to ignore certain directories or files. For Python files in a git repository, you could use something like:
find dir -not -path '.git' -iname '*.py'
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Inserting image into IPython notebook markdown
I am starting to depend heavily on the IPython notebook app to develop and document algorithms. It is awesome; but there is something that seems like it should be possible, but I can't figure out how to do it:
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Is there a fixed sized queue which removes excessive elements?
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In Python you can use a collection.deque with a specified maxlen.
– Jonas Gröger
Feb 10 '14 at 15:50
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Are trailing commas in arrays and objects part of the spec?
...ng to erase the line written by another commiter. See the same question in Python : https://stackoverflow.com/a/11597911/968988
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How to set environment variables in Jenkins?
...ate the line completely: cat app/build.gradle | grep "def majorVersion" | python -c 'import sys,re,os; print("VERSION_NUMBER="+re.findall(r"[\d+\.]+", sys.stdin.read())[0]+os.environ["BUILD_NUMBER"])'
– kenny_k
Jun 19 '15 at 6:52
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How to concatenate two strings to build a complete path
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/data/foo/bar/myfile
there was no native method (like os.path.join() in python) in shell to handle such situation.
But I did found a trick
For example , the base path was store in a shell variable
BASE=~/mydir
and the last file name you wanna join was
FILE=myfile
Then you can assign y...
How would you go about parsing Markdown? [closed]
...o parse it for you. A
quick Google-ing reveals libraries for CL, Haskell, Python,
JavaScript, Ruby, and so on. It is highly unlikely that you will need
to reinvent this wheel.
If you really have to write it from scratch, I recommend writing a
proper parser. With this technique, you won't have to...