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Confused by python file mode “w+”
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@NasifImtiazOhi - The Python docs say that w+ will "overwrite the existing file if the file exists". So as soon as you open a file with w+, it is now an empty file: it contains 0 bytes. If it used to contain data, that data has been truncated — ...
How to read and write INI file with Python3?
I need to read, write and create an INI file with Python3.
6 Answers
6
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Kill process by name?
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Above works on .nix, but is not pythonic. The appro way, as posted below, is to use the os.system('taskkill /f /im exampleProcess.exe') approach, which is part of core python.
– Jonesome Reinstate Monica
Feb 13 '15 at ...
Can Python test the membership of multiple values in a list?
...ssion 'a','b' in ['b', 'a', 'foo', 'bar'] doesn't work as expected because Python interprets it as a tuple:
>>> 'a', 'b'
('a', 'b')
>>> 'a', 5 + 2
('a', 7)
>>> 'a', 'x' in 'xerxes'
('a', True)
Other Options
There are other ways to execute this test, but they won't work...
Making Python loggers output all messages to stdout in addition to log file
Is there a way to make Python logging using the logging module automatically output things to stdout in addition to the log file where they are supposed to go? For example, I'd like all calls to logger.warning , logger.critical , logger.error to go to their intended places but in addition al...
What does the caret operator (^) in Python do?
I ran across the caret operator in python today and trying it out, I got the following output:
5 Answers
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Should __init__() call the parent class's __init__()?
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In Python, calling the super-class' __init__ is optional. If you call it, it is then also optional whether to use the super identifier, or whether to explicitly name the super class:
object.__init__(self)
In case of object, c...
代码块超过1.2w编译apk报错问题 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...sp; at org.eclipse.jetty.servlet复制代码从日志来看，错误的核心是 com.google.apphosting.api.ApiProxy$RequestTooLargeException，即请求的数据大小超出了 Google App Engine (GAE) Datastore 的限制。这通常发生在尝试存储过大的对象...
How to equalize the scales of x-axis and y-axis in Python matplotlib?
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Sorry, plt.axis('scaled') didn't work for me in Python 3.7 and matplotlib - matplotlib==3.1.0 However, plt.axis('square') worked!
– rishi jain
Oct 11 '19 at 10:15
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'too many values to unpack', iterating over a dict. key=>string, value=>list
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Python 2
You need to use something like iteritems.
for field, possible_values in fields.iteritems():
print field, possible_values
See this answer for more information on iterating through dictionaries, such as using item...