大约有 30,000 项符合查询结果（耗时：0.0529秒） [XML]
UnicodeEncodeError: 'ascii' codec can't encode character u'\xa0' in position 20: ordinal not in rang
...
You need to read the Python Unicode HOWTO. This error is the very first example.
Basically, stop using str to convert from unicode to encoded text / bytes.
Instead, properly use .encode() to encode the string:
p.agent_info = u' '.join((agent_c...
How to “test” NoneType in python?
...
Why this works?
Since None is the sole singleton object of NoneType in Python, we can use is operator to check if a variable has None in it or not.
Quoting from is docs,
The operators is and is not test for object identity: x is y is true if and only if x and y are the same object. x is not...
Python timedelta in years
...29th February 2008 it returns Zero- at least for me; not 1 as you suggest (Python 2.5.2). There's no need to rude Mr Machin. Exactly what two dates are you having trouble with?
– John Mee
Feb 8 '10 at 6:16
...
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...
Why does (1 in [1,0] == True) evaluate to False?
...
Python actually applies comparison operator chaining here. The expression is translated to
(1 in [1, 0]) and ([1, 0] == True)
which is obviously False.
This also happens for expressions like
a < b < c
which tran...
What does the star operator mean, in a function call?
What does the * operator mean in Python, such as in code like zip(*x) or f(**k) ?
5 Answers
...
How to read a text file into a list or an array with Python
I am trying to read the lines of a text file into a list or array in python. I just need to be able to individually access any item in the list or array after it is created.
...
Parse error: Syntax error, unexpected end of file in my PHP code
...the short open tag (<?) although this might cause issues when used with xml (<?xml will not work when this is enabled)!
NOTE: Reload your Server (like for example: Apache) and reload your PHP webpage in your browser.
...
How to get package name from anywhere?
...ed to add this class to the Name field at the Application tab. Or edit the xml and put
<application
android:name="com.example.app.MyApp"
android:icon="@drawable/icon"
android:label="@string/app_name"
.......
<activity
......
and then from anywhere you can call
S...