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pypi UserWarning: Unknown distribution option: 'install_requires'
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edited Jul 28 '13 at 22:14
Gringo Suave
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Selecting with complex criteria from pandas.DataFrame
... in range(10)]})
>>> df
A B C
0 9 40 300
1 9 70 700
2 5 70 900
3 8 80 900
4 7 50 200
5 9 30 900
6 2 80 700
7 2 80 400
8 5 80 300
9 7 70 800
We can apply column operations and get boolean Series objects:
>>> df["B"] > 50
0 False
1 T...
How to drive C#, C++ or Java compiler to compute 1+2+3+…+1000 at compile time?
...ed a really strange question. The interviewer asked me how can I compute 1+2+3+...+1000 just using compiler features. This means that I am not allowed to write a program and execute it, but I should just write a program that could drive the compiler to compute this sum while compilation and print th...
Find value in an array
... array, and if that's the case, you can use Array#include?(value):
a = [1,2,3,4,5]
a.include?(3) # => true
a.include?(9) # => false
If you mean something else, check the Ruby Array API
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How to represent multiple conditions in a shell if statement?
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392
Classic technique (escape metacharacters):
if [ \( "$g" -eq 1 -a "$c" = "123" \) -o \( "$g" -eq...
When to use the brace-enclosed initializer?
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answered Apr 2 '12 at 13:38
celtschkceltschk
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Changing one character in a string
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scvalexscvalex
12.7k22 gold badges3131 silver badges4242 bronze badges
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Use find command but exclude files in two directories
...s with ./scripts/
Testing the Solution:
$ mkdir a b c d e
$ touch a/1 b/2 c/3 d/4 e/5 e/a e/b
$ find . -type f ! -path "./a/*" ! -path "./b/*"
./d/4
./c/3
./e/a
./e/b
./e/5
You were pretty close, the -name option only considers the basename, where as -path considers the entire path =)
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split string only on first instance - java
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289
string.split("=", 2);
As String.split(java.lang.String regex, int limit) explains:
The a...