大约有 42,000 项符合查询结果（耗时：0.0533秒） [XML]
python pandas: apply a function with arguments to a series
...documentation). So now you can do:
my_series.apply(your_function, args=(2,3,4), extra_kw=1)
The positional arguments are added after the element of the series.
For older version of pandas:
The documentation explains this clearly. The apply method accepts a python function which should have a ...
Extract subset of key-value pairs from Python dictionary object?
...t that has several key value pairs (about 16), but I am only interested in 3 of them. What is the best way (shortest/efficient/most elegant) to achieve that?
...
Using Python String Formatting with Lists
...
edited Sep 27 '11 at 12:03
answered Sep 27 '11 at 11:53
in...
Image library for Python 3
What is python-3 using instead of PIL for manipulating Images?
8 Answers
8
...
Let JSON object accept bytes or let urlopen output strings
With Python 3 I am requesting a json document from a URL.
12 Answers
12
...
How to validate IP address in Python? [duplicate]
...
answered Nov 25 '08 at 23:50
DustinDustin
78.2k1717 gold badges103103 silver badges131131 bronze badges
...
How to round an average to 2 decimal places in PostgreSQL?
...
283
PostgreSQL does not define round(double precision, integer). For reasons @Mike Sherrill 'Cat Rec...
Build vs new in Rails 3
In the Rails 3 docs , the build method for associations is described as being the same as the new method, but with the automatic assignment of the foreign key. Straight from the docs:
...
Replace values in list using Python [duplicate]
...n-place if you want, but it doesn't actually save time:
items = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
for index, item in enumerate(items):
if not (item % 2):
items[index] = None
Here are (Python 3.6.3) timings demonstrating the non-timesave:
In [1]: %%timeit
...: items = [0, 1, 2, 3,...
Why don't structs support inheritance?
...|
edited Oct 9 '15 at 11:53
nevermind
1,6701515 silver badges2323 bronze badges
answered Aug 3 '09 at 16...