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Code Listing by Trent Mick

Code 1-10 of 18   Pages: Go to  1  2  Next >>  page  






This is a quick snippet that I use occasionally to profile some pure-Python code, using hotshot. Basically it is this:


Put this @hotshotit decorator on the function you want to profile.
Run your code through some representative paces. The result will be a <functionname>.prof in the current directory.
Process the .prof file and print the top 20 hotspots with the given "show_stats.py" script.



A little script/function to download a given URL with a console progress meter. Usage:

python geturl.py http://example.com/downloads/bigfile.zip


(This is from an old post to python-list.)



Provides a _paths_from_path_patterns that will generate a list of paths from a list of path patterns. A "path pattern" can include glob chars. By default it generates a recursive listing of file paths, but: recursion can be turned off,...



Sometimes it is nice to print a banner line in the output of a command line script to group a section of output (say, in a log file). This little banner() function will center a given string in a line (using a character and length you can...



This is a recipe is often use for the mainline of my Python scripts. With this recipe your Python script will:


gracefully handle Ctrl+C (i.e. KeyboardInterrupt)
log an error (using the logging module) for uncaught exceptions,...



A more friendly mkdir() than Python's standard os.mkdir().
Limitations: it doesn't take the optional 'mode' argument
yet.



I have a lot of scripts that end up writing files (often build system stuff). Everytime I either end up writing the obvious quick content = open(path).read() or I re-implement a function that handles things like: making a backup, some typical...



effbot's ElementTree module (http://effbot.org/zone/element-index.htm) is an excellent way to work with XML. It has a lot of incarnations though so distributing code that uses it right now is little bit of a pain. Here is a snippet you might want...



Ask the user a question using raw_input() and looking something
like this:

QUESTION [Y/n/q]
...validate...


See also: Recipe 577058 (query yes/no), Recipe 577096 (query custom answers), Recipe 577098 (query...



Adding or subtracting a month to a Python datetime.date or datetime.datetime is a little bit of a pain. Here is the code I use for that. These functions return the same datetime type as given. They preserve time of day data (if that is at all...