大约有 47,000 项符合查询结果(耗时:0.0378秒) [XML]
Printing without newline (print 'a',) prints a space, how to remove?
...
answered Dec 21 '10 at 12:21
moinudinmoinudin
111k4141 gold badges182182 silver badges212212 bronze badges
...
How to find the installed pandas version
... None
LANG: en_US.UTF-8
pandas: 0.15.2-113-g5531341
nose: 1.3.1
Cython: 0.21.1
numpy: 1.8.2
scipy: 0.14.0.dev-371b4ff
statsmodels: 0.6.0.dev-a738b4f
IPython: 2.0.0-dev
sphinx: 1.2.2
patsy: 0.3.0
dateutil: 1.5
pytz: 2012c
bottleneck: None
tables: 3.1.1
numexpr: 2.2.2
matplotlib: 1.4.2
openpyxl: None...
How to write one new line in Bitbucket markdown?
...
|
edited Apr 21 '17 at 15:09
Kasun Siyambalapitiya
2,62566 gold badges2525 silver badges4545 bronze badges
...
Can the C# interactive window interact with my code?
...
answered Jun 21 '12 at 10:00
slothsloth
87k1616 gold badges147147 silver badges196196 bronze badges
...
python tuple to dict
...gill
783k167167 gold badges10841084 silver badges12221222 bronze badges
8
...
Python integer division yields float
...
answered Aug 15 '09 at 21:51
Brandon E TaylorBrandon E Taylor
23.1k66 gold badges4343 silver badges6868 bronze badges
...
Can Vim highlight matching HTML tags like Notepad++?
...
219
+100
I had ...
in_array multiple values
... Mark ElliotMark Elliot
65.9k1818 gold badges132132 silver badges155155 bronze badges
13
...
Ruby: What is the easiest way to remove the first element from an array?
...rdSjoerd
66.5k1414 gold badges111111 silver badges162162 bronze badges
12
...
Extract first item of each sublist
...
You could use zip:
>>> lst=[[1,2,3],[11,12,13],[21,22,23]]
>>> zip(*lst)[0]
(1, 11, 21)
Or, Python 3 where zip does not produce a list:
>>> list(zip(*lst))[0]
(1, 11, 21)
Or,
>>> next(zip(*lst))
(1, 11, 21)
Or, (my favorite) use numpy:
...
