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How to detect reliably Mac OS X, iOS, Linux, Windows in C preprocessor? [duplicate]
If there's some cross-platform C/C++ code that should be compiled on Mac OS X, iOS, Linux, Windows, how can I detect them reliably during preprocessor process?
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How to delete the contents of a folder?
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import os, shutil
folder = '/path/to/folder'
for filename in os.listdir(folder):
file_path = os.path.join(folder, filename)
try:
if os.path.isfile(file_path) or os.path.islink(file_path):
os.unlink(file_p...
How to properly overload the
...n a class, it seems like we cannot implement with Matrix::operator<<(ostream& os, const Matrix& m). Instead we need to just use global operator override operator<<ostream& os, const Matrix& m) so why even bother to declare it inside class in the first place?
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How to split a dos path into its components in Python
I have a string variable which represents a dos path e.g:
19 Answers
19
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How to discover number of *logical* cores on Mac OS X?
...he command line, how many cores are on the machine when you're running Mac OS X? On Linux, I use:
14 Answers
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Check to see if python script is running
...cleanly, and check for it when you start up.
#/usr/bin/env python
import os
import sys
pid = str(os.getpid())
pidfile = "/tmp/mydaemon.pid"
if os.path.isfile(pidfile):
print "%s already exists, exiting" % pidfile
sys.exit()
file(pidfile, 'w').write(pid)
try:
# Do some actual work her...
Assign output of os.system to a variable and prevent it from being displayed on the screen [duplicat
I want to assign the output of a command I run using os.system to a variable and prevent it from being output to the screen. But, in the below code ,the output is sent to the screen and the value printed for var is 0, which I guess signifies whether the command ran successfully or not. Is there ...
mkdir -p functionality in Python [duplicate]
...ue)
The exist_ok parameter was added in Python 3.5.
For Python ≥ 3.2, os.makedirs has an optional third argument exist_ok that, when True, enables the mkdir -p functionality—unless mode is provided and the existing directory has different permissions than the intended ones; in that case, OSEr...
Python recursive folder read
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Make sure you understand the three return values of os.walk:
for root, subdirs, files in os.walk(rootdir):
has the following meaning:
root: Current path which is "walked through"
subdirs: Files in root of type directory
files: Files in root (not in subdirs) of type other ...
How to check if a path is absolute path or relative path in cross platform way with Python?
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os.path.isabs returns True if the path is absolute, False if not. The documentation says it works in windows (I can confirm it works in Linux personally).
os.path.isabs(my_path)
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