大约有 11,000 项符合查询结果（耗时：0.0297秒） [XML]
Update value of a nested dictionary of varying depth
...t somewhat peculiar coding and at least one bug. I'd recommend, instead:
Python 2:
import collections
def update(d, u):
for k, v in u.iteritems():
if isinstance(v, collections.Mapping):
d[k] = update(d.get(k, {}), v)
else:
d[k] = v
return d
Pytho...
how to return index of a sorted list? [duplicate]
...
You can use the python sorting functions' key parameter to sort the index array instead.
>>> s = [2, 3, 1, 4, 5]
>>> sorted(range(len(s)), key=lambda k: s[k])
[2, 0, 1, 3, 4]
>>>
...
How can I build a small operating system on an old desktop computer? [closed]
... is the one we used in my OS class in college:
Modern Operating Systems PDF
Modern Operating Systems on Amazon
Despite the ridiculous cover, it's a fantastic read, especially for a textbook. Tanenbaum is really an expert in this area and his explanations of how the OS works underneath the hoo...
Creating a new user and password with Ansible
...st be hashed.
- hosts: all
user: root
vars:
# created with:
# python -c 'import crypt; print crypt.crypt("This is my Password", "$1$SomeSalt$")'
password: $1$SomeSalt$UqddPX3r4kH3UL5jq5/ZI.
tasks:
- user: name=tset password={{password}}
If your playbook or ansible command l...
How to get item's position in a list?
...
print(testlist.index(element) if element in testlist else None)
or the "pythonic way", which I don't like so much because code is less clear, but sometimes is more efficient,
try:
print testlist.index(element)
except ValueError:
pass
...
How to use multiple arguments for awk with a shebang (i.e. #!)?
...t more standardized than the location of gawk or even worse something like python or ruby or spidermonkey.]
Which means that you cannot actually use any arguments at all.
share
|
improve this answe...
How to check if string input is a number? [duplicate]
...t things like 4.1 when technically only 4 is valid. It is also against the python mentality to have secret conversions like this happening and I would prefer to do strict checks at my public interface
– Peter R
Feb 19 '15 at 14:24
...
How to create a tuple with only one element
... make them tuples. You have to add a comma after the string to indicate to python that it should be a tuple.
>>> type( ('a') )
<type 'str'>
>>> type( ('a',) )
<type 'tuple'>
To fix your example code, add commas here:
>>> a = [('a',), ('b',), ('c', 'd')]
...
How to retry after exception?
...
@g33kz0r the for-else construct in Python executes the else clause if the for loop doesn't break. So, in this case, that section executes if we try all 10 attempts and always get an exception.
– xorsyst
Jan 28 '15 at 11:...
How can I convert JSON to CSV?
I have a JSON file I want to convert to a CSV file. How can I do this with Python?
26 Answers
...