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What are the GCC default include directories?
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answered Jul 12 '11 at 15:01
Ihor KaharlichenkoIhor Kaharlichenko
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How to calculate the number of occurrence of a given character in each row of a column of strings?
...a")
q.data
# number string number.of.a
#1 1 greatgreat 2
#2 2 magic 1
#3 3 not 0
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Accessing class variables from a list comprehension in the class definition
... comprehension within the class definition? The following works in Python 2 but fails in Python 3:
5 Answers
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Is “double hashing” a password less secure than just hashing it once?
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270
Hashing a password once is insecure
No, multiple hashes are not less secure; they are an esse...
How to redirect both stdout and stderr to a file [duplicate]
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If you want to log to the same file:
command1 >> log_file 2>&1
If you want different files:
command1 >> log_file 2>> err_file
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dropping infinite values from dataframes in pandas?
... dropna:
df.replace([np.inf, -np.inf], np.nan).dropna(subset=["col1", "col2"], how="all")
For example:
In [11]: df = pd.DataFrame([1, 2, np.inf, -np.inf])
In [12]: df.replace([np.inf, -np.inf], np.nan)
Out[12]:
0
0 1
1 2
2 NaN
3 NaN
The same method would work for a Series.
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How to insert element into arrays at specific position?
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23 Answers
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How can I check if a program exists from a Bash script?
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Difference between del, remove and pop on lists
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The effects of the three different methods to remove an element from a list:
remove removes the...
How to get the difference between two arrays in JavaScript?
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