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How to get the seconds since epoch from the time + date output of gmtime()?
How do you do reverse gmtime() , where you put the time + date and get the number of seconds?
6 Answers
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Finding what methods a Python object has
...omma at the end of the print, makes it printing
# in the same line, 4 times (count)
print "| {0: <20}".format(method),
count += 1
if count == 4:
count = 0
print
dir_attributes.py (Python 3.4.3)
#!/usr/bin/python3
""" Demonstrates the usage of dir(), with better o...
Immutable vs Mutable types
... that's complicated by the fact that augmented assignment, like a += b sometimes is mutation. And the fact that assignment to part of a larger object sometimes means mutation of that larger object, just never mutation of the part—e.g., a[0] = b doesn't mutate a[0], but it probably does mutate a…...
When is it better to use String.Format vs string concatenation?
...ot check the parameters against the format string and you end up with a runtime error (that is, if you're lucky enough not to have it in an obscure method, such as logging an error). With concatenation, removing a parameter is less error prone. You could argue the chance of error is very small, but ...
how do I use the grep --include option for multiple file types?
...include=".{html,php}" to prevent shell from expanding '' which at the same time stop shell to expand {html,php}. It seems that equal sign in --include=* is able to prevent shell from expanding '*'.
– tianyapiaozi
May 17 '12 at 4:53
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Escape a string for a sed replace pattern
...ases previously not accounted for, the commands above have changed several times. Check the edit history for details.
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Joining three tables using MySQL
...only in syntax. If you are not aware of ANSI syntax, it is well worth your time to learn it. It will help you avoid JOIN errors like you have made in the future.
– RedFilter
Sep 14 '10 at 14:38
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How does one reorder columns in a data frame?
How would one change this input (with the sequence: time, in, out, files):
11 Answers
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How can I have grep not print out 'No such file or directory' errors?
..., it's almost guaranteed (IMHO) that you'll forget at the most inopportune time.
– Kelvin
Mar 12 '18 at 20:20
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How to resolve symbolic links in a shell script
...e symlinks. Bonus points for also resolving ~username notation at the same time.
19 Answers
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