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Calculating a directory's size using Python?

... This walks all sub-directories; summing file sizes: import os def get_size(start_path = '.'): total_size = 0 for dirpath, dirnames, filenames in os.walk(start_path): for f in filenames: fp = os.path.join(dirpath, f) # skip if it is symbolic li...
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Recursive sub folder search and return files in a list python

... are supplied so you can prune it if there are folders that you don't wish os.walk to recurse into. import os result = [os.path.join(dp, f) for dp, dn, filenames in os.walk(PATH) for f in filenames if os.path.splitext(f)[1] == '.txt'] Edit: After the latest downvote, it occurred to me that glob ...
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Python list directory, subdirectory, and files

... Use os.path.join to concatenate the directory and file name: for path, subdirs, files in os.walk(root): for name in files: print os.path.join(path, name) Note the usage of path and not root in the concatenation, sinc...
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Detecting Windows or Linux? [duplicate]

...he commons lang has a class SystemUtils.java you can use : SystemUtils.IS_OS_LINUX SystemUtils.IS_OS_WINDOWS share | improve this answer | follow | ...
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How to access environment variable values?

... Environment variables are accessed through os.environ import os print(os.environ['HOME']) Or you can see a list of all the environment variables using: os.environ As sometimes you might need to see a complete list! # using get will return `None` if a key is not...
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Relative paths in Python

... the file that has the script, you want to do something like this: import os dirname = os.path.dirname(__file__) filename = os.path.join(dirname, 'relative/path/to/file/you/want') This will give you the absolute path to the file you're looking for. Note that if you're using setuptools, you shoul...
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How do I programmatically determine operating system in Java?

I would like to determine the operating system of the host that my Java program is running programmatically (for example: I would like to be able to load different properties based on whether I am on a Windows or Unix platform). What is the safest way to do this with 100% reliability? ...
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How to count the number of files in a directory using Python

... os.listdir() will be slightly more efficient than using glob.glob. To test if a filename is an ordinary file (and not a directory or other entity), use os.path.isfile(): import os, os.path # simple version for working with...
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How to check if a file exists in Go?

... function solely intended to check if a file exists or not (like Python's os.path.exists ). What is the idiomatic way to do it? ...
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Find current directory and file's directory [duplicate]

... directory a Python file is contained in, write this in that file: import os dir_path = os.path.dirname(os.path.realpath(__file__)) (Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is ...