Recent questions tagged Python

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python - How to use NumPy array with ctypes?

I am still writing on a python interface for my c code with ctypes. Today I substituted my file reading ... a mistake in the example code See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Chunkize warning while installing gensim

I have installed gensim (through pip) in Python. After the installation is over I get the following warning: C: ... 18.1, pattern-2.6. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - TensorFlow: libcudart.so.7.5: cannot open shared object file: No such file or directory

I am running TensorFlow on Ubuntu 15.10. When I enter pip show tensorflow, I see that TF has been ... You guys are absolutely awesome! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - csrf error in django

I want to realize a login for my site. I basically copied and pasted the following bits from the Django Book together. ... %} </body> </html> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - pandas df.loc[z,x]=y how to improve speed?

I have identified one pandas command timeseries.loc[z, x] = y to be responsible for most of the time spent in ... "name": titles}, index=index) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Scatter plot with a huge amount of data

I would like to use Matplotlib to generate a scatter plot with a huge amount of data (about 3 million points). ... any way to improve the speed? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - SQLAlchemy subquery - average of sums

is there any way how to write the following SQL statement in SQLAlchemy ORM: SELECT AVG(a1) FROM (SELECT sum( ... BY irterm.item_id); Thank you See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Stopping a Reduce() operation mid way. Functional way of doing partial running sum

I have been doing some functional programming and had a question. Perhaps I might be missing something but is ... where we stopped caring. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Cannot inherit from multiple classes defining __slots__?

A certain situation in Python recently alarmed me, and its reason is still not completely clear after ... Multiple Inheritance __slots__ problem See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to obtain ports that a process in listening on?

How do I get the ports that a process is listening on using python? The pid of the process is known. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to serve Flask static files using Nginx?

I've a web application with this structure: | |__ static |__style.less |__images |__ myapp.py |__ wsgi.py ... ; } Is there something missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Wrap text in a table reportlab?

I use a table but, I draw in in a canvas to control the position of the flowables, this because I ... .imageshack.us/img600/3203/reportld.jpg See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to use dict.get() with multidimensional dict?

I have a multidimensional dict, and I'd like to be able to retrieve a value by a key:key pair, and return ' ... to speed this up a little bit. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to use predict_generator with ImageDataGenerator?

I'm very new to Keras. I trained a model and would like to predict some images stored in ... model.predict_generator(test_generator,nb_samples) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to reset a DataFrame's indexes for all groups in one step?

I've tried to split my dataframe to groups df = pd.DataFrame({'A' : ['foo', 'bar', 'foo', ' ... automatically call some method for each group) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Suppressing namespace prefixes in ElementTree 1.2

In python 2.7 (with etree 1.3), I can suppress the XML prefixes on elements like this: Python 2.7.1 ... there any way to remove them completely? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Passing a tuple as command line argument

My requirement is to pass a tuple as command line argument like --data (1,2,3,4) I tried to use the argparse module, ... 2, 3, 4) <type 'tuple'> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to Check if request.GET var is None?

I'm getting into django and this is getting me a headache. I'm trying to get a simple GET variable. URL is site. ... , None, etc, to no avail.) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Bottle web framework - How to stop?

When starting a bottle webserver without a thread or a subprocess, there's no problem. To exit the bottle app - ... . Is there a reason ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - numpy and Global Interpreter Lock

I am about to write some computationally-intensive Python code that'll almost certainly spend most of its time inside ... Intel MKL 10.3.1. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Styling of Pandas groupby boxplots

The normal matplotlib boxplot command in Python returns a dictionary with keys for the boxes, median, whiskers, ... 'X') function accessible? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - PyQt4: Create a custom dialog that returns parameters

I'm attempting to add a custom dialog box to my current GUI that can be launched for the user to ... need more information or clarification. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Convert numpy array to pandas dataframe

I have a numpy array of size 31x36 and i want to transform into pandas dataframe in order to process it. ... issue and transform it properly? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - What is the difference if I don't use stdout=subprocess.PIPE in subprocess.Popen()?

I recently noted in Python the subprocess.Popen() has an argument: stdout=None(default) I also saw people using ... the command a is done. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to include chromedriver with pyinstaller?

I am using pyinstaller to create an executable of my python script. In the script I'm using these imports: from ... is not a module... Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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447 views

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python - ctypes return a string from c function

I'm a Python veteran, but haven't dabbled much in C. After half a day of not finding anything on the ... way to accomplish what I want? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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407 views

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python - List comprehension, map, and numpy.vectorize performance

I have a function foo(i) that takes an integer and takes a significant amount of time to execute. Will there be a ... .) Is there a better way? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - what does `super()` in `__new__`

Note: Part of a flyweight implementation with Python import weakref class CarModel: _models = weakref. ... newly created object. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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