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Filtering Pandas DataFrames on dates
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pandas will convert any "datetime" string into a datetime object.. so it's correct
– janscas
Mar 16 '18 at 10:04
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Python concatenate text files
...people who learn about fileinput are told that it's a way to turn a simple sys.argv (or what's left as args after optparse/etc.) into a big virtual file for trivial scripts, and don't think to use it for anything else (i.e., when the list isn't command-line args). Or they do learn, but then forget...
Difference between Divide and Conquer Algo and Dynamic Programming
...tead of recalculating it.
By the way, dynamic programming doesn't mean to convert a recursive code into an iterative code. You can also save the subresults into a variable if you want a recursive code. In this case the technique is called memoization. For our example it looks like this:
// declare...
All combinations of a list of lists
...d by itertools and a reverse version (e.g. create a list, reverse() it and convert back to tuple). Best ask a new question.
– Joachim Wagner
Feb 26 at 11:06
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How should strace be used?
...d out how a program is interacting with the OS. It does this by monitoring system calls and signals.
Uses
Good for when you don't have source code or don't want to be bothered to really go through it.
Also, useful for your own code if you don't feel like opening up GDB, but are just interested in u...
Fastest method of screen capturing on Windows
...e source and destination device contexts do not match, the BitBlt function converts the source color format to match the destination format.
– user244343
Mar 4 '11 at 2:08
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How default .equals and .hashCode will work for my classes?
... distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)
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How do I run all Python unit tests in a directory?
... You can change the last line to ´res = runner.run(suite); sys.exit(0 if res.wasSuccessful() else 1)´ if you want a correct exit code
– Sadap
Apr 18 at 8:07
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How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script?
How can I programmatically (i.e., not using vi ) convert DOS/Windows newlines to Unix?
23 Answers
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Convert a date format in PHP
I am trying to convert a date from yyyy-mm-dd to dd-mm-yyyy (but not in SQL); however I don't know how the date function requires a timestamp, and I can't get a timestamp from this string.
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