大约有 9,000 项符合查询结果（耗时：0.0307秒） [XML]
How do I save and restore multiple variables in python?
...created here...
# Saving the objects:
with open('objs.pkl', 'w') as f: # Python 3: open(..., 'wb')
pickle.dump([obj0, obj1, obj2], f)
# Getting back the objects:
with open('objs.pkl') as f: # Python 3: open(..., 'rb')
obj0, obj1, obj2 = pickle.load(f)
If you have a lot of data, you can...
How can I create a copy of an object in Python?
...
How can I create a copy of an object in Python?
So, if I change values of the fields of the new object, the old object should not be affected by that.
You mean a mutable object then.
In Python 3, lists get a copy method (in 2, you'd use a slice to make a copy):
&g...
python: how to send mail with TO, CC and BCC?
... smtplib.SMTP does not send lists as to addresses. At least not on python 2.7.2
– LostMohican
Apr 5 '12 at 8:06
...
Convert string in base64 to image and save on filesystem in Python
...e data using the base64 codec, and then write it to the filesystem.
# In Python 2.7
fh = open("imageToSave.png", "wb")
fh.write(img_data.decode('base64'))
fh.close()
# or, more concisely using with statement
with open("imageToSave.png", "wb") as fh:
fh.write(img_data.decode('base64'))
Moder...
What is :: (double colon) in Python when subscripting sequences?
I know that I can use something like string[3:4] to get a substring in Python, but what does the 3 mean in somesequence[::3] ?
...
What is the standard Python docstring format? [closed]
I have seen a few different styles of writing docstrings in Python, is there an official or "agreed-upon" style?
7 Answers
...
“Pretty” Continuous Integration for Python
...ted with Trac. Apache Gump is the CI tool used by Apache. It is written in Python.
share
|
improve this answer
|
follow
|
...
Comparing two collections for equality irrespective of the order of items in them
...sing System.Linq; first to make it work
– Junior Mayhé
May 21 '10 at 16:44
if this code is within a loop and collecti...
Array include any value from another array?
...
(cheeses & foods).empty?
As Marc-André Lafortune said in comments, & works in linear time while any? + include? will be quadratic. For larger sets of data, linear time will be faster. For small data sets, any? + include? may be faster as shown by Lee Jarvis...
Automatic post-registration user authentication
... answered Apr 23 '12 at 21:53
Cédric NiroussetCédric Nirousset
33122 silver badges66 bronze badges
...