Recent questions tagged Python

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python - Cumulative Sum Function on Pandas Data Frame

I am attempting to capture a "running" cumulative sum given a series of period amounts. See example: df = ... doesn't return the desired result 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 - fastest method to dump numpy array into string

I need to organized a data file with chunks of named data. Data is NUMPY arrays. But I don't want to use ... buffer to obtaine an array back. See Question&Answers more detail:os...

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

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385 views

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python - How do I capture a screenshot if my nosetests fail?

I am running selenium webdriver tests with nosetests. I want to capture a screenshot whenever nosetests fail. ... python or nosetests features? 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 - ImportError: No module named 'decouple' while deploying on Heroku

I was trying to deploy my django project on heroku from heroku cli. So I created an app and then I ran ... .txt ├── runtime.txt └── staticfiles 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 concatenate multiple excel sheets from the same file?

I have a big excel file that contains many different sheets. All the sheets have the same structure like: Name ... the data comes from? 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 - In SQLAlchemy, how do I define an event to fire DDL using declarative syntax?

This example shows how to use it with "non-declarative" - http://docs.sqlalchemy.org/en/latest/core/ddl. ... Base): __tablename__ = 'tablexyz' 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 - Converting exponential to float

This is my code, trying to convert the second field of the line from exponential into float. outputrrd = ... Does anyone know the reason? 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 - Multiprocess multiple files in a list

I am trying to read a list that contains N number of .csv files stored in a list synchronously. Right now I ... of the list to Process 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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python 2.7 - f2py with Intel Fortran compiler

I am trying to use f2py to interface my python programs with my Fortran modules. I am on a Win7 platform. I use ... it. Thank you for your time 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 - Efficiently Subtract Vector from Matrix (Scipy)

I've got a large matrix stored as a scipy.sparse.csc_matrix and want to subtract a column vector from each ... an in-place assignment scenario. See Question&Answers more detail:os...

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

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450 views

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python - Apply a for loop to multiple DataFrames in Pandas

I have multiple DataFrames that I want to do the same thing to. First I create a list of the DataFrames. All of ... df3['result'] == 'passed'] See Question&Answers more detail:os...

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

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419 views

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python - Why does scrapy throw an error for me when trying to spider and parse a site?

The following code class SiteSpider(BaseSpider): name = "some_site.com" allowed_domains = ["some_site.com"] ... doing this totally 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 - Sorting array of objects by row using custom dtype

I am attempting to sort a some arrays lexicographically by rows. The integer case works perfectly: >>> arr = np. ... as np.sort, as expected. See Question&Answers more detail:os...

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

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383 views

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python - Flask Confirm Action

I'm creating a site using the Flask framework, and am implementing a confirmation page for (mainly administrative) ... in building the urls. See Question&Answers more detail:os...

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

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494 views

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python - importing JSON to mongoDB using pymongo

i am trying to import a JSON file i pull from a URL and send it to mongoDB as is, using the pymongo ... file will be updated every week. 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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335 views

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python - Getting adjective from an adverb in nltk or other NLP library

Is there a way to get an adjective corresponding to a given adverb in NLTK or other python library. For example, ... to get "terrible". 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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789 views

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python - Docker [Errno 111] Connect call failed ('127.0.0.1', 6379)

I am trying to follow the tutorial here https://channels.readthedocs.io/en/latest/tutorial/part_2.html and check if ... I'm really new to these See Question&Answers more detail:os...

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

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544 views

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python 2.7 - How to get products available quantity (Odoo v8 and v9)

I need to get products available quantity from odoo stock. There are several models I stock_quant, stock_move, ... anyone please guide me? 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 input a word in ncurses screen?

I was trying to use raw_input() function first, but find it in compatible with ncurses. Then I tried window. ... stdscr.getch() curses.endwin() 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 - Calling forward function without .forward()

While looking at some pytorch code on pose estimation AlphaPose I noticed some unfamiliar syntax: Basically, we ... basic python principles? See Question&Answers more detail:os...

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

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319 views

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python - Twisted network client with multiprocessing workers?

So, I've got an application that uses Twisted + Stomper as a STOMP client which farms out work to a ... my approach. 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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335 views

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python - String formatting of timedeltas in Pandas

I noticed that Pandas knows how to smartly format a timedelta object into a string. In [1]: df[column][rows].max() ... in x days, hh:mm:ss ? See Question&Answers more detail:os...

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

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339 views

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python - Downloading pictures with scrapy

I'm starting with scrapy, and I have first real problem. It's downloading pictures. So this is my spider. ... and didn't find anything helpful. See Question&Answers more detail:os...

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

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319 views

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python - How to open disks in windows and read data at low level?

I know in linux it is as simple as /dev/sda but in Windows how do you open a disk and start reading ... I get this error even as administrator. See Question&Answers more detail:os...

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

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313 views

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python - Pandas adding extra row to DataFrame when assigning index

I'm trying to use the 0th column ("Gene.name") as the Index values. Here's the original data below: I ... when I'm reassigning the index values? See Question&Answers more detail:os...

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

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855 views

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python - Paramiko SSH failing with "Server '...' not found in known_hosts" when run on web server

I am trying to use Paramiko to make an SSH communication between 2 servers on a private network. The client ... output for this command" ) See Question&Answers more detail:os...

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

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306 views

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python - Parsing nested HTML list with BeautifulSoup

I need to parse a nested HTML list and convert it to a parent-child dict. Given this list: <ul> <li> ... How can I do it with BeautifulSoup? See Question&Answers more detail:os...

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

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282 views

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python - Convert String to Int without int()

I'm trying to implement add2strings, sub2strings, mult2strings functions in Python. They're all very easy if you ... another way to 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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