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Get the first element of each tuple in a list in Python [duplicate]
...r x in rows]
Below is a demonstration:
>>> rows = [(1, 2), (3, 4), (5, 6)]
>>> [x[0] for x in rows]
[1, 3, 5]
>>>
Alternately, you could use unpacking instead of x[0]:
res_list = [x for x,_ in rows]
Below is a demonstration:
>>> lst = [(1, 2), (3, 4), (...
Android 4.3 menu item showAsAction=“always” ignored
I'm using the new v7 appcompat library available starting from Android 4.3 (API level 18).
12 Answers
...
Using GCC to produce readable assembly?
... push ebp
1: 89 e5 mov ebp,esp
3: 83 e4 f0 and esp,0xfffffff0
6: 83 ec 10 sub esp,0x10
puts("test");
9: c7 04 24 00 00 00 00 mov DWORD PTR [esp],0x0
10: e8 fc ff ff ff call 11 <main+0x11>...
How to call C from Swift?
...
edited May 23 '17 at 12:34
Community♦
111 silver badge
answered Jun 2 '14 at 23:14
...
In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
...Beazley's Curious Course on Coroutines is an excellent start. Read slides 24-33 for a quick primer.
Reading data from a generator using yield from
def reader():
"""A generator that fakes a read from a file, socket, etc."""
for i in range(4):
yield '<< %s' % i
def reader_wrap...
Is there a way to break a list into columns?
...er 9 or older: http://caniuse.com/multicolumn
ul {
-moz-column-count: 4;
-moz-column-gap: 20px;
-webkit-column-count: 4;
-webkit-column-gap: 20px;
column-count: 4;
column-gap: 20px;
}
See: http://jsfiddle.net/pdExf/
If IE support is required, you'll have to use JavaScript...
Resize image in the wiki of GitHub using Markdown
...s (internal/external):
<img src="https://github.com/favicon.ico" width="48">
Example:
Old Answer:
This should work:
[[ http://url.to/image.png | height = 100px ]]
Source: https://guides.github.com/features/mastering-markdown/
...
open read and close a file in 1 line of code
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edited Nov 26 '15 at 12:24
Robert Siemer
24k77 gold badges6767 silver badges8282 bronze badges
answered...
How can I avoid running ActiveRecord callbacks?
... |
edited Dec 3 '10 at 4:01
answered Mar 11 '09 at 4:29
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