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class method generates “TypeError: … got multiple values for keyword argument …”
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165
The problem is that the first argument passed to class methods in python is always a copy of t...
How to remove last n characters from every element in the R vector
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117
Here is an example of what I would do. I hope it's what you're looking for.
char_array = c("...
Using Python String Formatting with Lists
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114
print s % tuple(x)
instead of
print s % (x)
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Python: fastest way to create a list of n lists
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105
The probably only way which is marginally faster than
d = [[] for x in xrange(n)]
is
from...
How to select the last record of a table in SQL?
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14 Answers
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How to make lists contain only distinct element in Python? [duplicate]
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10 Answers
10
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How to output only captured groups with sed?
...e output as well as specifying what you do want.
string='This is a sample 123 text and some 987 numbers'
echo "$string" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p'
This says:
don't default to printing each line (-n)
exclude zero or more non-digits
i...
Pairs from single list
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answered Jan 7 '11 at 17:35
Jochen RitzelJochen Ritzel
89.3k2525 gold badges181181 silver badges180180 bronze badges
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Regular Expression to get a string between parentheses in Javascript
...tches = regExp.exec("I expect five hundred dollars ($500).");
//matches[1] contains the value between the parentheses
console.log(matches[1]);
Breakdown:
\( : match an opening parentheses
( : begin capturing group
[^)]+: match one or more non ) characters
) : end capturing group
\) : ma...