Recent questions tagged Python

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python - using len() in Pandas dataframe

This is the look of my DataFrame: StateAb GivenNm Surname PartyNm PartyAb ElectedOrder 35 WA Joe BULLOCK Australian Labor ... did I go 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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python 3.x - Canonicalize / normalize a URL?

I am searching for a library function to normalize a URL in Python, that is to remove "./" or "../" ... is there something like this is 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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python - Django - Grouping querysets by a certain field in template

I have a table Events, ordered by a field date. I want to print out the events in the template, but using a separate ... %} </div> {% endfor %} 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 - Most efficient way to remove non-numeric list entries

I'm looking to 'clean' a list by excluding any items which contain characters other than 0-9, and wondering if ... of long strings (15 chars). 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 logging, pytest fixture and capsys?

I am trying to unit-test some algorithm that uses logging library. I have a fixture that creates a logger. In my ... the test cases by the way. 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 ORM: window function with subsequent filtering

Answering this question, I found out that window functions are not allowed to combine with filter (technically, they ... query with Django ORM? 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 - Module not found error in VS code despite the fact that I installed it

I'm trying to debug some python code using VS code. I'm getting the following error about a module that I ... VS code does not recognize 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 - Finding the position of a word in a string

With: sentence= input("Enter a sentence") keyword= input("Input a keyword from the sentence") I want to find ... finds the position of the word. 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 - SocketServer.ThreadingTCPServer - Cannot bind to address after program restart

As a follow-up to cannot-bind-to-address-after-socket-program-crashes, I was receiving this error after my ... I fix this error message? 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 - Implementation limitations of float.as_integer_ratio()

Recently, a correspondent mentioned float.as_integer_ratio(), new in Python 2.6, noting that typical floating point ... tree and Python source. 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 - Scrapy pipeline spider_opened and spider_closed not being called

I am having some trouble with a scrapy pipeline. My information is being scraped form sites ok and the ... that would be very useful. See Question&Answers more detail:os...

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

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258 views

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python - pyspark parse fixed width text file

Trying to parse a fixed width text file. my text file looks like the following and I need a row id, date ... parsing in between those two steps. 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 ROT13 encode in Python3?

The Python 3 documentation has rot13 listed on its codecs page. I tried encoding a string using rot13 ... listed in Python3 documentation? See Question&Answers more detail:os...

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

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452 views

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python - pyYAML Errors on "!" in a string

First, a disclaimer: I'm not too familiar with YAML. I'm trying to parse a YAML doc into Key Value Pairs ... in the code using the parser. See Question&Answers more detail:os...

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

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149 views

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python - How to convert a for loop output to a list?

For example: for y,x in zip(range(0,4,1),range(0,8,2)): print(x+y) Returns: 0 3 6 9 What I want is: ['0', '3', '6', '9'] How can I achieve 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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257 views

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python - Celery and SQLAlchemy - This result object does not return rows. It has been closed automatically

I have a celery project connected to a MySQL databases. One of the tables is defined like this: class ... advise to skip these difficulties? See Question&Answers more detail:os...

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

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487 views

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python - pandas shift converts my column from integer to float.

shift converts my column from integer to float. It turns out that np.nan is float only. Is there any ways to keep ... # Name: b, dtype: float64 See Question&Answers more detail:os...

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

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172 views

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python - matplotlib font not found

I'm trying to use the font "Heuristica" in my matplotlib plots, but it won't show up. I defined "Heuristica" on ... I'd be glad about any 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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158 views

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python - Get second element text with XPath?

<span class='python'> <a>google</a> <a>chrome</a> </span> I want to get chrome and have it working like this ... <a>chrome</a> </span> </span> 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 - Showing and Hiding widgets

How do you show and hide widgets in Tkinter? I want to have an entry box, but not have it shown at ... do this without having multiple frames. See Question&Answers more detail:os...

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

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358 views

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python - list around groupby results in empty groups

I was playing around to get a better feeling for itertools groupby, so I grouped a list of tuples by the number and tried to ... e'), (3, 'f')]] See Question&Answers more detail:os...

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

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226 views

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python - Throttle pandas apply, when using an API call

I have a large DataFrame with an address column: data addr 0 0.617964 IN,Krishnagiri,635115 1 0.635428 IN, ... Process finished with exit code 1 See Question&Answers more detail:os...

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

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195 views

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python - String comparison fails

output = subprocess.check_output("./mount.sh", shell=True) print output if output == "expected_String": print " ... " it is always 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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286 views

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python - Creating Scrapy array of items with multiple parse

I am scraping listings with Scrapy. My script parses first for the listing urls using parse_node, then it parses each ... and build up an 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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366 views

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python - Message digest of pdf in digital signature

I want to manually verify the integrity of a signed pdf. I have been able to reach at:- got the value of ... can I extract the message digest? See Question&Answers more detail:os...

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

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322 views

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python - How to create a global hotkey on Windows with 3 arguments?

Just like Ctl, Alt + delete I want to write a program, which uses global hotkeys with 3 or more ... are pressed simultaneously. I took See Question&Answers more detail:os...

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

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258 views

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python - HTTP Request Timeout

In Python 2.6, a new "timeout" parameter was added to the httplib.HTTPConnection class: http://docs.python. ... way to emulate this behavior? See Question&Answers more detail:os...

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

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299 views

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python - How to access a site via a headless driver without being denied permission

I am trying to retrieve the html code of a site using a headless chrome driver. However I get a " ... popping up every couple 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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