Recent questions tagged Python

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python - Importing a module dynamically using imp

I am trying to import a module from a different directory dynamically. I am following an answer from this ... [Errno 13] Permission denied 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 - Get changed files using gitpython

I want to get a list of changed files of the current git-repo. The files, that are normally listed ... (path_to_another_file)) >>not staged 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 - "Edit with IDLE" option missing from context menu

I have Python 2.7.5 that installed with ArcGIS 10.2.2. When I first right-clicked a .py script I'd ... IDLE" back in the context menu? 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 - Unable to Install Tensorflow (MemoryError)

I tried to install Tensorflow on Linux Ubuntu 16.04 from source and using pip and I keep getting the following ... that doesn't really help. 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 - argparse optional subparser (for --version)

I have the following code (using Python 2.7): # shared command line options, like --version or --verbose ... prog: error: too few arguments See Question&Answers more detail:os...

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

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259 views

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python - Why is run called twice in the Django dev server?

I want to make the Django development server do something before it starts running. To do this, I created a new ... what can be done about it? 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: Drop rows with all nan or 0 values

I'd like to drop all values from a table if the rows = nan or 0. I know there's a way to do ... . Is there an efficient implementation of this? 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 - How do I put docstrings on Enums?

Python 3.4 has a new enum module and Enum data type. If you are unable to switch to 3.4 yet, Enum has been ... Is there an easy way to do 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 - Psycopg2 uses up memory on large select query

I am using psycopg2 to query a Postgresql database and trying to process all rows from a table with about ... without using up available memory? 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 - Best way to remove elements from a list

I would like to know what is the best way/efficient way to remove element(s) from the list. There are ... want to remove elements in sequence. See Question&Answers more detail:os...

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

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192 views

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python - No schema supplied and other errors with using requests.get()

I'm learning Python by following Automate the Boring Stuff. This program is supposed to go to http://xkcd.com ... the no schema supplied 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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868 views

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python - numpy corrcoef - compute correlation matrix while ignoring missing data

I am trying to compute a correlation matrix of several values. These values include some 'nan' values. I'm using numpy. ... ]) Too many nan's :( See Question&Answers more detail:os...

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

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228 views

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python - Finding the dimension with highest variance using scikit-learn PCA

I need to use pca to identify the dimensions with the highest variance of a certain set of data. I'm ... information with scikit's pca? 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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382 views

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python - cv2.imread flags not found

I recently started working with openCV and python and decided to analyze some sample code to get an idea of ... to install python and openCV. See Question&Answers more detail:os...

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

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220 views

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python - How can I set a single proxy for a requests session object?

I'm using the Python requests package to send http requests. I want to add a single proxy to the requests ... single proxy on a session 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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142 views

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python - Geopy: catch timeout error

I am using geopy to geocode some addresses and I want to catch the timeout errors and print them out so I ... timed out 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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386 views

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python - jupyter ModuleNotFoundError: No module named matplotlib

I am currently trying to work basic python - jupyter projects. I am stuck on following error during ... happy over every constructive feedback See Question&Answers more detail:os...

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

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131 views

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python - Django serializer for one object

I'm trying to figure out a way to serialize some Django model object to JSON format, something like: j = Job. ... know how to get that hash. See Question&Answers more detail:os...

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

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169 views

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python - Accessing parent class attribute from sub-class body

I have a class Klass with a class attribute my_list. I have a subclass of it SubKlass, in which i want to ... will be solved at some point. 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 execute() return ResultProxy as Tuple, not dict

I have the following code: query = """ SELECT Coalesce((SELECT sp.param_value FROM sites_params sp WHERE sp.param_name = ... site.ci # u'375' See Question&Answers more detail:os...

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

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802 views

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python - Beautiful Soup Using Regex to Find Tags?

I'd really like to be able to allow Beautiful Soup to match any list of tags, like so. I know attr accepts regex ... the 'data' part of a table. See Question&Answers more detail:os...

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

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148 views

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python - How to add virtualenv to path

I am trying to find out why my virtualenv and/or virtualenv wrapper - installed using pip using homebrew - cannot be ... OSX 10.7.5 (Lion). See Question&Answers more detail:os...

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

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191 views

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python - How to use ``xlrd.xldate_as_tuple()``

I am not quite sure how to use the following function: xlrd.xldate_as_tuple for the following data xldate:39274.0 ... the function for the data? See Question&Answers more detail:os...

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

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262 views

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python - OrderedDict performance (compared to deque)

I've been trying to performance optimize a BFS implementation in Python and my original implementation was using ... .position] = new_node See Question&Answers more detail:os...

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

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308 views

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python - How do I install wxPython on Mac OS X?

I'd like to use wxPython on my Mac OS 10.7 (Lion) computer. (I'm a Tkinter refugee.) I upgraded from Python 2. ... and what do I do about it??? See Question&Answers more detail:os...

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

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206 views

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python linear regression predict by date

I want to predict a value at a date in the future with simple linear regression, but I can't due to the date ... .date, format="%Y-%M-%D") See Question&Answers more detail:os...

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

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207 views

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python - How to get currently running testcase name from testsuite in unittest

How can I get currently running testcase name, while in the testsuite collection there are 16 testcases. Tests ... using Selenium-RC framework. See Question&Answers more detail:os...

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

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158 views

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python - Specifying widget for model form extra field (Django)

I have to add extra field to my model form. My approach is: class MyForm(forms.ModelForm): extra_field = forms. ... ? What I am doing wrong? See Question&Answers more detail:os...

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

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