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How to extract a floating number from a string [duplicate]
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>>> re.findall(r"[-+]?\d*\.\d+|\d+", "Current Level: -13.2 db or 14.2 or 3")
['-13.2', '14.2', '3']
If you want to validate user input, you could alternatively also check for a float by stepping to it directly:
user_input = "Current Level: 1e100 db"
for token in user_input.split():
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matplotlib colorbar for scatter
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edited Apr 17 '15 at 16:14
Christian Herenz
37622 silver badges1212 bronze badges
answered May 19 '11 ...
View all TODO items in Visual Studio using GhostDoc
...I've replaced it.
– Zyphrax
Sep 11 '14 at 4:47
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@Zyphrax 'Toes the string' made me lol, I rememb...
How to add a footer to a UITableView in Storyboard
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dbrajkovicdbrajkovic
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107
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What is the difference between pluck and collect in Rails?
...ck(:id, :name)?
– Alexander
Dec 10 '14 at 15:03
@AlexPopov - Rails 4+ supports plucking multiple fields, Rails 3 does ...
Create a custom event in Java
...d "community wiki".)
– cHao
Jan 23 '14 at 20:18
1
Does java have no built in thing for this? I wo...
Python Regex - How to Get Positions and Values of Matches
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142
import re
p = re.compile("[a-z]")
for m in p.finditer('a1b2c3d4'):
print(m.start(), m.grou...
How do I prevent a Gateway Timeout with FastCGI on Nginx
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edited Aug 5 '14 at 20:22
undur_gongor
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What is the easiest way to push an element to the beginning of the array?
...n years! :-)
– konung
Jul 29 '13 at 14:07
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show 3 more comments
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Is there a reason that Swift array assignment is inconsistent (neither a reference nor a deep copy)?
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edited Sep 13 '14 at 13:38
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
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