Recent questions tagged Python

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python - pip install requests[security] vs pip install requests: Difference

I am using Ubuntu 14.04 (Trusty Tahr) with Python version 2.7.6. Today, when I created a new virtualenv ... they both behave the same generally? See Question&Answers more detail:os...

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

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python - Is there a convenient way to map a file uri to os.path?

A subsystem which I have no control over insists on providing filesystem paths in the form of a uri. Is ... in a platform independent manner? See Question&Answers more detail:os...

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

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python - Selenium - Click at certain position

Using the Python version of Selenium, is it possible to click some element in the DOM and to specify the ... find the equivalent in Python. See Question&Answers more detail:os...

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

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python - Selenium: How to Inject/execute a Javascript in to a Page before loading/executing any other scripts of the page?

I'm using selenium python webdriver in order to browse some pages. I want to inject a javascript code in to ... 't find any proper answer! See Question&Answers more detail:os...

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

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python - Solution for SpecificationError: nested renamer is not supported while agg() along with groupby()

def stack_plot(data, xtick, col2='project_is_approved', col3='total'): ind = np.arange(data.shape[0]) plt. ... nested renamer is not supported** See Question&Answers more detail:os...

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

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python - BeautifulSoup: object of type 'Response' has no len()

Issue: when I try to execute the script, BeautifulSoup(html, ...) gives the error message "TypeError: object ... (html, "html.parser") See Question&Answers more detail:os...

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

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python - SQLAlchemy: get Model from table name. This may imply appending some function to a metaclass constructor as far as I can see

I want to make a function that, given the name of a table, returns the model with that tablename. Eg: class ... models. Or I don't understand. See Question&Answers more detail:os...

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

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python struct.error: 'i' format requires -2147483648 <= number <= 2147483647

Problem I'm willing to do a feature engineering using multiprocessing module (multiprocessing.Pool.starmap(). However, ... ], members, is_train) See Question&Answers more detail:os...

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

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python - Jupyter python3 notebook cannot recognize pandas

I am using the Jupyter notebook with Python 3 selected. On the first line of a cell I am entering: import ... step is to get this working. See Question&Answers more detail:os...

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

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python - Bad operand type for unary +: 'str'

I cannot figure out a problem I am having with code written in Python 2.7. I am converting the references to ints, ... type for unary +: 'str'` See Question&Answers more detail:os...

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

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python - Need the path for particular files using os.walk()

I'm trying to perform some geoprocessing. My task is to locate all shapefiles within a directory, and then find ... = True: shpfiles.append[x] See Question&Answers more detail:os...

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

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python - How to suppress pip upgrade warning?

My pip version was off -- every pip command was saying: You are using pip version 6.0.8, however version ... What are correct commands to use? See Question&Answers more detail:os...

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

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python - Installing numpy on Docker Alpine

I'm trying to install numpy in a docker container based on Alpine 3.1. I'm using the following Dockerfile: ... /installation steps I'm missing? See Question&Answers more detail:os...

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

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python - Different std in pandas vs numpy

The standard deviation differs between pandas and numpy. Why and which one is the correct one? (the relative difference is ... 0' numpy '1.8.1' See Question&Answers more detail:os...

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

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python - How to emulate sum() using a list comprehension?

Is it possible to emulate something like sum() using list comprehension ? For example - I need to calculate the ... result *= i return result See Question&Answers more detail:os...

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

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203 views

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python - How I can get rid of None values in dictionary?

Something like: for (a,b) in kwargs.iteritems(): if not b : del kwargs[a] This code raise exception because ... ) if b is not None) Thanks See Question&Answers more detail:os...

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

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python - How to call module written with argparse in iPython notebook

I am trying to pass BioPython sequences to Ilya Stepanov's implementation of Ukkonen's suffix tree algorithm in ... 's algorithm is fantastic. See Question&Answers more detail:os...

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

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python - Convert a filename to a file:// URL

In WeasyPrint's public API I accept filenames (among other types) for the HTML inputs. Any filename that works ... and make it cross-platform? See Question&Answers more detail:os...

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

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python - "ImportError: No module named httplib2" even after installation

I'm having a hard time understanding why I get ImportError: No module named httplib2 after making sure httplib2 is ... >shakes fist at heavens< See Question&Answers more detail:os...

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

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python - Meaning of "with" statement without "as" keyword

I'm familiar with using python's with statement as a means of ensuring finalization of an object in the event ... meaning that is eluding me? See Question&Answers more detail:os...

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

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366 views

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python - Can I get the matrix determinant using Numpy?

I read in the manual of Numpy that there is function det(M) that can calculate the determinant. However ... compatibility problems with Numpy. See Question&Answers more detail:os...

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

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python - "Could not interpret optimizer identifier" error in Keras

I got this error when I tried to modify the learning rate parameter of SGD optimizer in Keras. Did I ... interpret optimizer identifier:', ) See Question&Answers more detail:os...

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

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python - Flask - ImportError: No module named app

First I created __init__.py from flask import Flask app = Flask(__name__) Then in a separate file, in the ... ImportError: No module named app See Question&Answers more detail:os...

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

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python 2.7 - Why do os.path.isfile return False?

I am just a newbie in python, so sorry for noobish question >>> import os >>> os.listdir("/home/user/ ... is False when it should be True? See Question&Answers more detail:os...

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

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python - What do the three arrow (">>>") signs mean?

I haven't been able to figure out what the >>> does, even though I often see it often in source code. See Question&Answers more detail:os...

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

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322 views

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python - Import statement inside class/function definition - is it a good idea?

I created a module named util that provides classes and functions I often use in Python. Some of them need imported ... ? Is it a good idea? See Question&Answers more detail:os...

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

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275 views

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python - Changing hostname in a url

I am trying to use python to change the hostname in a url, and have been playing around with the urlparse module ... ":" in the correct places. See Question&Answers more detail:os...

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

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python - Class views in Django

Django view points to a function, which can be a problem if you want to change only a bit of functionality. ... approach or has any other idea? See Question&Answers more detail:os...

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

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