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Creating an Android trial application that expires after a fixed time period
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answered Jun 15 '09 at 14:02
snctlnsnctln
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C++ SFINAE examples?
...ss IsClassT {
private:
typedef char One;
typedef struct { char a[2]; } Two;
template<typename C> static One test(int C::*);
// Will be chosen if T is anything except a class.
template<typename C> static Two test(...);
public:
enum { Yes = sizeof(IsClassT<T&...
How do I wrap link_to around some html ruby code?
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271
link_to takes a block of code ( >= Rails 2.2) which it will use as the body of the tag.
So...
Viewing all `git diffs` with vimdiff
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edited Aug 12 '15 at 22:22
Undo♦
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Linq list of lists to single list
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answered Jul 17 '09 at 20:40
NoldorinNoldorin
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How do I get the backtrace for all the threads in GDB?
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2 Answers
2
Active
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Read only the first line of a file?
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Use the .readline() method (Python 2 docs, Python 3 docs):
with open('myfile.txt') as f:
first_line = f.readline()
Some notes:
As noted in the docs, unless it is the only line in the file, the string returned from f.readline() will contain a trailing ...
Rename all files in directory from $filename_h to $filename_half?
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edited Aug 26 '16 at 22:11
sclarson
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How to get a value from a cell of a dataframe?
...value using the column name:
In [3]: sub_df
Out[3]:
A B
2 -0.133653 -0.030854
In [4]: sub_df.iloc[0]
Out[4]:
A -0.133653
B -0.030854
Name: 2, dtype: float64
In [5]: sub_df.iloc[0]['A']
Out[5]: -0.13365288513107493
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