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How to call an external command?
...e flexible (you can get the stdout, stderr, the "real" status code, better error handling, etc...).
The official documentation recommends the subprocess module over the alternative os.system():
The subprocess module provides more powerful facilities for spawning new processes and retrieving the...
How to count number of files in each directory?
... they don't contain newlines (and quietly persuade the guilty party of the error of their ways).
If you're interested in the count of the files in each sub-directory of the current directory, counting any files in any sub-directories along with the files in the immediate sub-directory, then I'd a...
Parsing command-line arguments in C?
..._MODE, WORD_MODE, LINE_MODE } mode;
bool isCaseInsensitive;
};
static error_t parse_opt(int key, char *arg, struct argp_state *state) {
struct arguments *arguments = state->input;
switch (key) {
case 'l': arguments->mode = LINE_MODE; break;
case 'w': arguments->mode = W...
How do I plot in real-time in a while loop using matplotlib?
...ange(10):
y = np.random.random()
plt.scatter(i, y)
plt.pause(0.05)
plt.show()
Note some of the changes:
Call plt.pause(0.05) to both draw the new data and it runs the GUI's event loop (allowing for mouse interaction).
...
How to view corresponding SQL query of the Django ORM's queryset?
...
answered Jul 7 '12 at 9:05
aisbaaaisbaa
6,86244 gold badges2727 silver badges3838 bronze badges
...
Object comparison in JavaScript [duplicate]
...another fiddle, jsfiddle.net/mendesjuan/uKtEy/1 Now the function throws an error if an object is cyclical, which is a shame because your original version did work for cyclical objects, as long as the two object were pointing to the same object jsfiddle.net/mendesjuan/uKtEy/2
– ...
How can I get a list of locally installed Python modules?
...
In recent versions of pip, this won't work, yielding an error message saying AttributeError: module 'pip' has no attribute 'get_installed_distributions'.
– HelloGoodbye
Dec 28 '18 at 15:12
...
How do you effectively model inheritance in a database?
... to confusion. "TPT" is supertype-subtype. "TPH" is Unnormalised, a gross error. "TPH" is even less Normalised, another gross error.
– PerformanceDBA
Nov 10 '10 at 21:33
45
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Setting CSS pseudo-class rules from JavaScript
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Firefox: "Error: The operation is insecure."
– 8128
Jul 14 '12 at 16:14
...
Using jQuery to center a DIV on the screen
...isible".'
– Cԃաԃ
Nov 21 '13 at 9:05
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