Recent questions tagged Python:

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I have the following python code that uses zip() and it seems to cause unintended data truncation. inc_data = [[ ... if one exists? many 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: Convert a for loop into a recursion function

First of all, I'm still a newb to python so please take it easy on me. I've done my research and I have a basic understanding ... at it", "element": "qdf:response" }, { "code": 4,...

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

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python: sys.argv[0] meaning in official documentation

Quoting from docs.python.org: "sys.argv The list of command line arguments passed to a Python script. argv[0] is ... Python 3.2 on GNU/Linux. 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 sort lists alphabetically with respect to capitalized letters

I'm trying to sort a list alphabetically, where capital letters should come before lower case letters. l = ['a', 'b', 'B', ... ', 'A', 'b', '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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python: convert numerical data in pandas dataframe to floats in the presence of strings

I've got a pandas dataframe with a column 'cap'. This column mostly consists of floats but has a few strings in ... keep the 'na' as a string? See Question&Answers more detail:os...

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

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821 views

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python: convert numerical data in pandas dataframe to floats in the presence of strings

I've got a pandas dataframe with a column 'cap'. This column mostly consists of floats but has a few strings in ... keep the 'na' as a string? 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: rstrip one exact string, respecting order

Is it possible to use the python command rstrip so that it does only remove one exact string and does not take ... I get the second outcome? 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: sys is not defined

I have a piece of code which is working in Linux, and I am now trying to run it in windows, I import sys but ... exit() Why is sys not working?? 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: nonblocking subprocess, check stdout

Ok so the problem I'm trying to solve is this: I need to run a program with some flags set, check on ... , say, shell scripting. Thanks! Will 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: use windows api to render text using a ttf font

What would be a full example, going from nothing to ending up with a bitmap in memory, of opening a ... and the rest of stackoverflow. See Question&Answers more detail:os...

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

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736 views

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python: getting all pairs of values from list

I'd like a tuple of each pair of values from a list, e.g. [1,2,3,4] Would yield: (1,2) (1,3) (1,4 ... ish but I can't quite get it to work. 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 all youtube video urls of a channel

I want to get all video url's of a specific channel. I think json with python or java would be a good choice. I ... ['link'][0]['href'] #url See Question&Answers more detail:os...

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

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690 views

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python: Two modules and classes with the same name under different packages

I have started to learn python and writing a practice app. The directory structure looks like src | --ShutterDeck ... have __init__.py in them. See Question&Answers more detail:os...

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

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709 views

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python: extract integers from mixed list

(python 2.7.8) I'm trying to make a function to extract integers from a mixed list. Mixed list can be anything ... (?) and has the same 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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795 views

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python: why does replace not work?

I wrote a quick script to remove the 'http://' substring from a list of website addresses saved on an ... "prova.xlsx") #nothing has changed See Question&Answers more detail:os...

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

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823 views

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python: mutating the copy of a list changes the original?

So until now, i was under the assumption that if you have for example: L = [1,2,3] L2 = L1 L2.append ... that in this case, both lists changed? See Question&Answers more detail:os...

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

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819 views

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python: cannot concatenate 'str' and 'long' objects

I'm trying to set up a choice field in django, but I don't think this is a django issue. The choices field ... get this error. What's going on? 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: json.dumps can't handle utf-8?

Below is the test program, including a Chinese character: # -*- coding: utf-8 -*- import json j = {"d":" ... is broken? Or anything I am 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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756 views

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python: check if a hostname is resolved

How can I have a function in python that returns 1 if the a hostname resolves and 0 if a hostname does ... useful, any thoughts? 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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955 views

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python: datetime tzinfo time zone names documentation

I have a date that I build: from datetime import datetime from datetime import tzinfo test = '2013-03-27 23:05' ... isn't working in my case. See Question&Answers more detail:os...

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

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671 views

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python: iterating through a dictionary with list values

Given a dictionary of lists, such as d = {'1':[11,12], '2':[21,21]} Which is more pythonic or otherwise ... d2[1]: # whatever with k, x See Question&Answers more detail:os...

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

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781 views

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python: check if url to jpg exists

In python, how would I check if a url ending in .jpg exists? ex: http://www.fakedomain.com/fakeImage.jpg 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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717 views

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python: creating excel workbook and dumping csv files as worksheets

I have few csv files which I would like to dump as new worksheets in a excel workbook(xls/xlsx). How do I ... /xxx/compiled.xls") print "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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729 views

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python: find only common key-value pairs of several dicts: dict intersection

I have 0 or more dicts in a list: >>> dicts = [dict(a=3, b=89, d=2), dict(a=3, ... inelegant and/or inefficient solutions myself. Suggestions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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869 views

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python: how to convert currency to decimal?

i have dollars in a string variable dollars = '$5.99' how do i convert this to a decimal instead of a string ... it like adding dollars to it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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748 views

1 answer

python: how to get notifications for mysql database changes?

In Python, is there a way to get notified that a specific table in a MySQL database has changed? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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687 views

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python: What happens when class attribute, instance attribute, and method all have the same name?

How does python differentiate a class attribute, instance attribute, and method when the names are the same? class ... ' object is not callable See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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907 views

1 answer

python: how to check if a line is an empty line

Trying to figure out how to write an if cycle to check if a line is empty. The file has many strings, and one of ... an end of line" x.close() See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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