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Traverse a list in reverse order in Python
So I can start from len(collection) and end in collection[0] .
26 Answers
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Convert a list to a data frame
I have a nested list of data. Its length is 132 and each item is a list of length 20. Is there a quick way to convert this structure into a data frame that has 132 rows and 20 columns of data?
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Converting Integer to Long
...ens that I am not always sure what the datatype of the field is. For that, and to avoid some code duplication I have created the following method:
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How do you properly determine the current script directory in Python?
...at if you would be able to define a "known location" that is multiplatform and that also comes with the module. I'm ready to bet that the only safe location is the script location. Note, this doesn't meat that the script should write to this location, but for reading data it is safe.
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Bash: Syntax error: redirection unexpected
...solved:
The exec form makes it possible to avoid shell string munging, and
to RUN commands using a base image that does not contain /bin/sh.
Note
To use a different shell, other than /bin/sh, use the exec form
passing in the desired shell. For example,
RUN ["/bin/bash", "-c", "ec...
Run php script as daemon process
I need to run a php script as daemon process (wait for instructions and do stuff). cron job will not do it for me because actions need to be taken as soon as instruction arrives. I know PHP is not really the best option for daemon processes due to memory management issues, but due to various reasons...
Leaflet - How to find existing markers, and delete markers?
...sed by the latest. So one way to go is to create a global array of marker, and you add your marker in the global array.
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python: Change the scripts working directory to the script's own directory
... @EliCourtwright If __file__ is not already an absolute path, and the user has changed the working directory, then os.path.abspath will fail anyway.
– Arthur Tacca
Jan 17 '17 at 16:16
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How to start a background process in Python?
...rocess module provides more powerful facilities for spawning new processes and retrieving their results; using that module is preferable to using these functions.)
If you want your process to start in the background you can either use system() and call it in the same way your shell script did, o...
How can I search sub-folders using glob.glob module?
I want to open a series of subfolders in a folder and find some text files and print some lines of the text files. I am using this:
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