Recent questions tagged Python

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python - What happens when you try to delete a list element while iterating over it

I'm iterating a list as follows: some_list = [1, 2, 3, 4] another_list = [1, 2, 3, 4] for idx, item in ... output of the above snippet [2, 4]? 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 3.x - How to Fix: "ImportError: DLL load failed The specified procedure could not be found." when the DLLs are there

Updated to new Anaconda 2018, opened a jupyter notebook that worked prior to the update. Having problems with ... at asking these questions. 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 - Custom eval_metric_ops in Estimator in Tensorflow

I am trying to add the r squared in the eval_metric_ops in my estimator like this: def model_fn(features, ... to create this eval_metric_ops ? 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 SVG/PDF to EMF

I am looking for a way to save a matplotlib figure as an EMF file. Matplotlib allows me to save as either a PDF ... 1.3.0 using the wx backend. 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 - Does conda update packages from pypi installed using pip install?

I use Anaconda (because it is awesome), and the packages available through conda install are quite extensive. However ... I'm still uncertain. 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 a script to query android sqlite database

Android saved settings in a database file which is /data/data/com.android.providers.settings/databases/settings.db. ... volume_alarm' 6 $.quit; 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 sklearn's CountVectorizerand() to get ngrams that include any punctuation as separate tokens?

I use sklearn.feature_extraction.text.CountVectorizer to compute n-grams. Example: import sklearn.feature_extraction.text ... separate tokens? 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 - Setting the text colour of a tooltip in PyQt

I've been adding tooltips to an app that I've been writing, and had issues with the colour of the tooltip ... based tooltip to not wrap? 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 - Run Multiple Spider sequentially

Class Myspider1 #do something.... Class Myspider2 #do something... The above is the architecture of my spider.py file. ... ?? thanks a lot!!! 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 type sudo password when using subprocess.call?

i defined a function that switch my proxy settings every now and then, problem is that i want it to run in ... at the beginning of the function? See Question&Answers more detail:os...

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

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338 views

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python - "Clean" way to use words as markers in matplotlib? And make font size and color differ?

Suppose I have the 3x3 matrix below: [apples 19 3.5] [oranges 07 2.2] [grapes 23 7.8] Only in ... anyone out there ever done something similar? See Question&Answers more detail:os...

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

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279 views

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python - Paste command using Selenium

I'm using Python 2.7 and Selenium 2-44-0 on Windows 7. I'm looking for a quicker way of ... level without downloading 3rd party software. 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 - Difference between add and iadd?

I'm not understanding the purpose of the in-place operators like iadd, imul, etc. Many operations have an in- ... Is one better than the other? See Question&Answers more detail:os...

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

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437 views

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python - Django Admin: not seeing any app (permission problem?)

I have a site with Django running some custom apps. I was not using the Django ORM, just the view and templates ... ', 'menues.views.admIndex'), 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 - GAE " no attribute 'HTTPSHandler' " dev_appserver.py

I am trying to use the google appengine python SKD from my ubuntu lucid. I have already compiled python2. ... error with python2.5 isntallation. See Question&Answers more detail:os...

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

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387 views

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python - how to use matplotlib PATH to draw polygon

I have a problem when using python's matplotlib PATH modules I want to draw a close poly like this: but I don't ... plt.show() and I got 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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364 views

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python - How to duplicate rows based on a counter column

Let's say I have a data frame called df x count d 2 e 3 f 2 Count would be the counter column and the # ... df.iloc['count']) and it errors out See Question&Answers more detail:os...

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

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342 views

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python - Python3/cloud9/lambda - making imported modules available to lambda

Using sqlobject. When I import the module I get a unable to load module error when running lambda local or ... not be simpler: import sqlobject See Question&Answers more detail:os...

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

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352 views

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python - The __getattribute__ method and descriptors

according to this guide on python descriptors https://docs.python.org/howto/descriptor.html method objects in new ... old style special casing? See Question&Answers more detail:os...

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

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686 views

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python - Pandas convert float in scientific notation to string

I used read_csv() to load a dataset that looks like this userid NaN 1.091178e+11 1.137856e+11 I want to ... scientific form. What should I do？ See Question&Answers more detail:os...

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

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715 views

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python - Checkboxes in a Combobox using PyQt

I need to implement a drop down list that contains CheckBoxes, much like having the entries in a ComboBox being ... to port it to python. See Question&Answers more detail:os...

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

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303 views

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python - Create equal aspect (square) plot with multiple axes when data limits are different?

I would like to create a square plot using multiple axes using make_axes_locateable as demonstrated in the matplotlib ... Axes-only constraint. See Question&Answers more detail:os...

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

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393 views

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python - IPython magic print variables on assignment

Is there a parameter in IPython to print the variables each time I assign them ? Currently: In [1]: a ... is especially useful for beginners. See Question&Answers more detail:os...

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

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641 views

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python - Using Selenium on calendar date picker

I am trying to pick a date (01/01/2011) from a calendar on this page. https://cotthosting.com/ ... 2.7 with Selenium and ChromeDriver See Question&Answers more detail:os...

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

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288 views

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python - Getting all the min elements and its indices from a list

I have a list that has a minimum element that is present multiple times like a = [1,2,1,1,4,5,6] And ... only the index where 1 occurs first. See Question&Answers more detail:os...

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

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1.1k views

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python - Pandas: join on partial string match, like Excel VLOOKUP

I am trying to perform an action in Python which is very similar to VLOOKUP in Excel. There have been many ... much in advance for your 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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414 views

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python - Retrieve indices of NaN values in a pandas dataframe

I try to retrieve for each row containing NaN values all the indices of the corresponding columns. d=[[11.4 ... huge dataset. Thanks 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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369 views

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python 3.x - Tkinter Treeview heading styling

I want to change the background colour of the treeview headings. I have identified the element option of the Treeview. ... and used it to 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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