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Ubuntu running `pip install` gives error 'The following required packages can not be built: * freety
...o apt-get install python-matplotlib
For python 3.x
sudo apt-get install python3-matplotlib
After installing, you can try
(sudo) pip install matplotlib
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Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...收盘价格的基础上加了一个Random来演示实时变化。这个在下载的代码中您可以看到。这里不多讲。定义好这些变量之后我们就可以开始编写代码了。
第一个要实现的方法是 ServerStart方法。在该方法中，我们将CallbackObject对象...
UnicodeDecodeError: 'utf8' codec can't decode byte 0x9c
...above worked for me.
http://python-notes.curiousefficiency.org/en/latest/python3/text_file_processing.html
In short, to make Python 3 behave as similarly as possible to Python 2 use:
with open(filename, encoding="latin-1") as datafile:
# work on datafile here
However, read the article, the...
Concatenating two lists - difference between '+=' and extend()
... That's right. But at least you can use nonlocal l statement in boo in Python3.
– monitorius
Jul 2 '15 at 9:58
com...
How do I format a string using a dictionary in python-3.x?
...
I would say that use of the f-string is more aligned to python3 approach.
– Jonatas CD
May 25 '18 at 12:00
2
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How to find the mime type of a file in python?
...a different name:
pip3 install --user python-magic
# or:
sudo apt install python3-magic # Ubuntu distro package
The code can be simplified as well:
>>> import magic
>>> magic.from_file('/tmp/img_3304.jpg', mime=True)
'image/jpeg'
...
What does the Ellipsis object do?
...le make up the full number of dimensions in the array).
Interestingly, in python3, the Ellipsis literal (...) is usable outside the slice syntax, so you can actually write:
>>> ...
Ellipsis
Other than the various numeric types, no, I don't think it's used. As far as I'm aware, it was ...
Python subprocess/Popen with a modified environment
... variable names?) that the keys of the environment are bytes you can't (on python3) even use that construct.
As you can see the techniques (especially the first) used here benefits on the keys of the environment normally is valid python identifiers, and also known in advance (at coding time), the s...
Python list of dictionaries search
..., 'name': 'Pam'}]
Note: In Python 3, a filter object is returned. So the python3 solution would be:
list(filter(lambda person: person['name'] == 'Pam', people))
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How do I convert this list of dictionaries to a csv file?
...pening the file for you if you give it a path, and will default to utf8 in python3, and figure out headers too.
a dataframe is not the same structure as what CSV gives you, so you add one line upon loading to get the same thing: dataframe.to_dict('records')
pandas also makes it much easier to contro...