Recent questions tagged Python

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python - Flask and Werkzeug: Testing a post request with custom headers

I'm currently testing my app with suggestions from http://flask.pocoo.org/docs/testing/, but I would like to ... such a feature working, though? 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 - Mocking only a single method on an object

I'm familiar with other mocking libraries in other languages such as Mockito in Java, but Python's mock ... functionality in main_method alone? See Question&Answers more detail:os...

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

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353 views

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python - How can I break a for loop in jinja2?

How can I break out of a for loop in jinja2? my code is like this: <a href="#"> {% for page in ... the loop, once the condition has been met. 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 - super(type, obj): obj must be an instance or subtype of type

I work on a small Django app and get an error tells me, super(type, obj): obj must be an instance ... to provide more informations IF required. 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 do I find the difference between two values without knowing which is larger?

I was wondering if there was a function built into Python that can determine the distance between two rational numbers ... that can do 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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154 views

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python - PyQt - load XML into QTreeWidget

I'm trying to make a basic XML story maker in PyQt. So far I've been able to figure out everything my self, but I've ... = QtGui.QTreeWidgetItem( [ 'Text', '0' ], 1 ) new.setFlags...

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

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180 views

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python - How do you include flask/jinja2 code inside a markdown file?

I am using a markdown editor which is converted by post_body = markdown(text_from_markdown_editor) but when i render ... of the actual value. 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 - AccessTokenRefreshError: Google Spreadsheet API with oAuth 2.0 Service Account of App Engine App

I'm trying to access a Google Spreadsheet via the GData API using oAuth 2.0 service-account credentials created for ... with this code or setup? See Question&Answers more detail:os...

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

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261 views

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python - PySpark: dynamic union of DataFrames with different columns

Consider the arrays as shown here. I have 3 sets of array: Array 1: C1 C2 C3 1 2 3 9 5 6 Array 2: C2 C3 ... c1 return s print(s1.sum(55,65,23)) See Question&Answers more detail:os...

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

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188 views

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python Tkinter get() value from Entry Field

I have getting confused in getting the value from the Tkinter() Entry Field. I have this kind of code... from ... done? 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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510 views

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python - Shaping data for LSTM, and feeding output of dense layers to LSTM

I'm trying to figure out the proper syntax for the model I'm trying to fit. It's a time-series prediction ... : expected ndim=3, found ndim=2 See Question&Answers more detail:os...

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

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267 views

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python - Add cursor to matplotlib

This picture shows what I am trying to achieve: I am searching for a solution to add a cursor to my plotted ... to use as this cursor/marker. See Question&Answers more detail:os...

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

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157 views

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python - Fastest way to calculate difference in all columns

I have a dataframe of all float columns. For example: import numpy as np import pandas as pd df = pd.DataFrame ... This project is in Python 3. See Question&Answers more detail:os...

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

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417 views

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python - Using Colormap with Annotate Arrow in Matplotlib

I have seen many examples of using annotate arrows in Matplotlib that have a single color specified. I was wondering if ... RdPu), ) plt.show() See Question&Answers more detail:os...

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

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136 views

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python - How to convert a dictionary to a list of keys, with repeat counts given by the values?

I need your help to solve a problem. I want to convert a dictionary d = {key1:value1, key2:value2} into list ... The complexity should be O(n). See Question&Answers more detail:os...

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

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119 views

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python - Is it bad to store all instances of a class in a class field?

I was wondering if there is anything wrong (from a OOP point of view) in doing something like this: class Foobar: ... me (I'm new to OOP) See Question&Answers more detail:os...

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

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453 views

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python - Reshape MultiIndex dataframe to tabular format

Given a sample MultiIndex: idx = pd.MultiIndex.from_product([[0, 1, 2], ['a', 'b', 'c', 'd']]) df ... bring it back to its original from there. 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 - Force spider to stop in scrapy

I have 20 spiders in one project, each spider has different task and URL to crawl ( but data are similar ... ) SystemExit: SHUT DOWN EVERYTHING! See Question&Answers more detail:os...

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

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349 views

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python - pyqt4 emiting signals in threads to slots in main thread

I have some custom signals in my main thread that I would like to emit in my other threads but I'm not sure ... ()) main() signal never raised. See Question&Answers more detail:os...

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

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183 views

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python - How do I make my implementation of greedy set cover faster?

I came up with the following implementation for the Greedy Set Cover after much discussion regarding my original ... would be really nice. See Question&Answers more detail:os...

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

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283 views

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python - Dealing with import of foreignKeys in django-import-export

I don't understand how django-import-export module deals with ForeignKeys. Here is a simple exemple : models.py ... to find myself the match ? 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 - General SOCKS server failure when switching identity using stem

I have Tor running on a remote server (Ubuntu) on port 9150 with the control port on 9151. I've confirmed ... can issue signals with no trouble. See Question&Answers more detail:os...

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

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314 views

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python - Numpy: Row Wise Unique elements

Does any one know how to get unique elements row wise in a matrix. For e.g. input matrix may be like: a = [[1, ... ,a) b = np.asarray(b) print b 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 - Where does the performance boost of map or list comprehension implementations over calling a function over a loop come from?

I understand that you could be more efficient with memory in the implementation of map than in how you might do it ... runtime seconds -------- See Question&Answers more detail:os...

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

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184 views

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python - Cherrypy : which solutions for pages with large processing time

I have a website powered by cherrypy. For some pages, I need quite a long processing time (a multi-join SQL ... would be a nice solution here. See Question&Answers more detail:os...

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

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507 views

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python - Pandas iterate over DataFrame row pairs

How can I iterate over pairs of rows of a Pandas DataFrame? For example: content = [(1,2,[1,3]),(3,4,[2, ... , False] So one bool for each pair. 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 count duplicate in list

i have this list: ['Boston Americans', 'New York Giants', 'Chicago White Sox', ... team_name number_of_duplicates team_name number_of_duplicates See Question&Answers more detail:os...

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

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219 views

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python - How to Make Decorators Optionally Turn On Or Off

I am asking, given a function with a decorator, is it possible to run the function without invoking the ... turn Decorators On/Off optionally? See Question&Answers more detail:os...

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

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