Recent questions tagged python

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python - How to check if a specific integer is in a list

I want to know how to make an if statement that executes a clause if a certain integer is in a list. All ... to my problem from the others. 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 - Django upload_to outside of MEDIA_ROOT

My deployment script overwrites the media and source directories which means I have to move the uploads directory out ... ? Many thanks, Toby. 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 - XML Unicode strings with encoding declaration are not supported

Trying to do the following... from lxml import etree from lxml.etree import fromstring if request.POST: parser = ... comes from the SMS company. 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 - pip install PIL -E TICKETS-1 - No JPEG/PNG support

I'm using Ubuntu and VitualEnv for my Django project. I have PIL library installed using Synaptic Package Manager ... use Pillow instead of PIL 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's the error of numpy.polyfit?

I want to use numpy.polyfit for physical calculations, therefore I need the magnitude of the error. 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 2.7 - Pandas DataFrame Replace NaT with None

I have been struggling with this question for a long while, and I tried different methods. I have a simple ... Help? Thank you in advance. 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 generate temporary file in django and then destroy

I am doing some file processing and for generating the file i need to generate some temporary file from ... gets deleted after user session 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 - Can't catch mocked exception because it doesn't inherit BaseException

I'm working on a project that involves connecting to a remote server, waiting for a response, and then performing ... 'm not positive of that. 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 - Can I control the architecture (32bit vs 64bit) when building a pyinstaller executable?

Short Question Is there any way to control / guarantee the architecture (32bit vs 64bit) when building a pyinstaller ... running on a newer OS. 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 - ValueError: unconverted data remains: 02:05

I have some dates in a json files, and I am searching for those who corresponds to today's date : import os ... 05 Do you have any suggestions ? See Question&Answers more detail:os...

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

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963 views

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python - hashlib.md5() TypeError: Unicode-objects must be encoded before hashing

I am new to coding and have ran into a problem trying to encode a string. >>> import hashlib >>> a = ... with Windows and Python 3.4 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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python - Pandas: unique dataframe

I have a DataFrame that has duplicated rows. I'd like to get a DataFrame with a unique index and no duplicates. It ... it be a done by groupby? See Question&Answers more detail:os...

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

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199 views

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python - Installing PyGtk in virtualenv

So I am trying to run a simple matplotlib example in my virtualenv (in the console). Here's the code: ... to be installed within virtualenv. 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 convert numpy arrays to standard TensorFlow format?

I have two numpy arrays: One that contains captcha images Another that contains the corresponding labels (in one-hot vector ... a 5 by 62 array. 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 - Should I add a trailing comma after the last argument in a function call?

What is better to do? self.call(1, True, "hi") or self.call(1, True, "hi",) And what in the following ... to me, but what about function calls? See Question&Answers more detail:os...

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

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373 views

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python - SQLAlchemy: Hybrid expression with relationship

I have two Flask-SQLAlchemy models with a simple one-to-many relationship, like the minimal example below: class ... = School.id).as_scalar() See Question&Answers more detail:os...

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

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341 views

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python - ChoiceField doesn't display an empty label when using a tuple

What I'm trying to do I'm going to be keeping data about competitions in my database. I want to be able ... this would be much appreciated :) 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 - NameError: name 'exit' is not defined

I used cxfreeze to create a Windows executable from planrequest.py. It seemed to work ok, but when I run the ... #[do stuff with the request] See Question&Answers more detail:os...

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

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254 views

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python - Why does `False is False is False` evaluate to `True`?

Why in Python it is evaluated this way: >>> False is False is False True but when tried with parenthesis is ... (False is False) is False False 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 - Is it possible to write single line return statement with if statement?

Is is possible to return from a method in single line in python Looking for something like this return None if ... statement into a single line See Question&Answers more detail:os...

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

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441 views

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python - pytest using fixtures as arguments in parametrize

I would like to use fixtures as arguments of pytest.mark.parametrize or something that would have the same results ... depending on the test. See Question&Answers more detail:os...

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

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422 views

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python - How Pytorch Tensor get the index of specific value

In python list, we can use list.index(somevalue). How can pytorch do this? For example: a=[1,2,3] ... without converting it to a python list? See Question&Answers more detail:os...

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

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266 views

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python - List Comprehension: why is this a syntax error?

Why is print(x) here not valid (SyntaxError) in the following list-comprehension? my_list=[1,2,3] [print( ... (my_item) for my_item in my_list] See Question&Answers more detail:os...

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

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130 views

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python - What does Django's @property do?

What is @property in Django? Here is how I understand it: @property is a decorator for methods in a class that gets ... there vs if it isn't? See Question&Answers more detail:os...

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

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213 views

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python - How to check if an object is an instance of a namedtuple?

How do I check if an object is an instance of a Named 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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129 views

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python - Unit Test not running

I'm getting stuck with some unittests. Here's the simplest example I could come up with: #testito.py import unittest ... to do next. Any idea? See Question&Answers more detail:os...

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

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316 views

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python - Invalid Token when using Octal numbers

I'm a beginner in python and I'm trying to use a octal number in my script, but when I try it, it returns ... (and reading a python 2.2 book) See Question&Answers more detail:os...

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

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490 views

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python - datetime: Round/trim number of digits in microseconds

Currently I am logging stuff and I am using my own formatter with a custom formatTime(): def formatTime( ... three digits of the microseconds? See Question&Answers more detail:os...

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

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