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Matplotlib: “Unknown projection '3d'” error
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edited Apr 4 '19 at 18:23
Matthew Salvatore Viglione
4,14911 gold badge1010 silver badges3333 bronze badges
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How can I count the number of matches for a regex?
...tches
When counting matches of aa in aaaa the above snippet will give you 2.
aaaa
aa
aa
To get 3 matches, i.e. this behavior:
aaaa
aa
aa
aa
You have to search for a match at index <start of last match> + 1 as follows:
String hello = "aaaa";
Pattern pattern = Pattern.compile("aa");...
How to check if a string is a valid hex color representation?
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287
/^#[0-9A-F]{6}$/i.test('#AABBCC')
To elaborate:
^ -> match beginning
# ...
What's the (hidden) cost of Scala's lazy val?
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edited Feb 20 '14 at 20:33
vergenzt
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Convert Dictionary to semicolon separated string in c#
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294
using System.Linq;
string s = string.Join(";", myDict.Select(x => x.Key + "=" + x.Value).T...
Looping over a list in Python
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200
Try this,
x in mylist is better and more readable than x in mylist[:] and your len(x) should ...
Join a list of strings in python and wrap each string in quotation marks
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answered Aug 17 '12 at 14:28
jamylakjamylak
104k2222 gold badges206206 silver badges215215 bronze badges
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Element-wise addition of 2 lists?
...t;>> from operator import add
>>> list( map(add, list1, list2) )
[5, 7, 9]
or zip with a list comprehension:
>>> [sum(x) for x in zip(list1, list2)]
[5, 7, 9]
Timing comparisons:
>>> list2 = [4, 5, 6]*10**5
>>> list1 = [1, 2, 3]*10**5
>>> %tim...
git rebase, keeping track of 'local' and 'remote'
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247
TL;DR;
To summarize (As Benubird comments), when:
git checkout A
git rebase B # rebase ...
git: Show index diff in commit message as comment
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answered Jan 20 '11 at 17:09
Alan Haggai AlaviAlan Haggai Alavi
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