Recent questions tagged Python

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python - What to do with CIDs in text extracted by PDFMiner?

I've some PDFs which are in Hindi, and have extractable text. I used pdfminer.six for python 3.6, to ... font) that makes this issue continual? 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 - PyDev/Eclipse not loading _mklinit when run from a Conda environment

I created a conda environment - testenv2 - installed python/numpy/pandas. Added it as the interpreter in Eclipse ... . Thanks for the 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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python - Join on a condition to eagerly load in sqlalchemy orm

from sqlalchemy.orm import subqueryload, joinedload, eagerload from sqlalchemy import Column, DateTime, String, Integer, ... 1).one() 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 create the int 1 at two different memory locations?

I want to show someone how using is instead of == to compare integers can fail. I thought this would work, ... for enum-like purposes in 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 - Trying to plot two or more infrastructures in the same figure using OSMnx

I'm trying to plot multiple infrastructure networks(for example streets, rails and buildings) in the same figure ... , concisely in OSMnx? 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 - Replace the year in pandas.datetime column

I have a dataframe with a date column converted using pd.to_datetime(). When I inspected the data I found ... dtype in pandas 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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python tkinter display animated GIF using PIL

Is there any way to display an animated GIF in Tkinter using Python Image Library? I thought the ImageSequence ... , indicated in this topic. 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 - Images not showing when running a frozen pyqt app on another computer

I have a PyQt4 program that I froze using cx_freeze. The problem I am having is when I make a ... used PANEL More SVG files used 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 - Unbaking mojibake

When you have incorrectly decoded characters, how can you identify likely candidates for the original string? ? ... the corruption reversible? 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 - Are for-loop name list expressions legal?

In CPython 2.7.10 and 3.4.3, and PyPy 2.6.0 (Python 2.7.9), it is apparently legal to use ... of CPython that PyPy happens to also implement? 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 - Cython string concatenation is super slow; what else does it do poorly?

I have a large Python code base which we recently started compiling with Cython. Without making any changes to ... various flags with both. 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 you filter a string to only contain letters?

How do I make a function where it will filter out all the non-letters from the string? For example, ... append( character) return (valids) 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 create a wordcloud according to frequencies in a pandas dataframe

I have to plot a wordcloud. 'tweets.csv' is a Pandas dataframe which has a column named 'text'. The plotted ... U-17 final provided ... 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 - Test if all N variables are different

I want to make a condition where all selected variables are not equal. My solution so far is to compare every pair ... I do to make it simpler? See Question&Answers more detail:os...

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

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156 views

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python - (Yet Another) List Aliasing Conundrum

I thought I had the whole list alias thing figured out, but then I came across this: l = [1, 2, 3, 4 ... have to do with how deep aliasing goes? 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 - SQLAlchemy order by function result

This is the code I have and it is working (returns all problems ordered by difficulty): def get_noteworthy_problems ... object is not callable. See Question&Answers more detail:os...

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

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272 views

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python - Why is the join built-in having no influence on my code?

I had a bug that I reduced down to this: a = ['a','b','c'] print( "Before", a ) " ".join(a) print( "After ... ', 'b', 'c'] What's going on 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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183 views

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python - How to write at a particular position in text file without erasing original contents?

I've written a code in Python that goes through the file, extracts all numbers, adds them up. I have to ... the total changes -- nothing else. 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 - Wildcard not working in subprocess call using shlex

Language: Python v2.6.2 OS: AIX 5.3 I'm using Python to restore some files from a backup to a test ... that I expected that to do anything. 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 find the longest common substring of multiple strings?

I am writing a python script where I have multiple strings. For example: x = "brownasdfoersjumps" y = " ... /efficient way of doing it? See Question&Answers more detail:os...

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

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264 views

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python - How to evaluate the constants SymPy gives with initial condition?

How can I evaluate the constants C1 and C2 from a solution of a differential equation SymPy gives me? There are the initial ... = 0 and C1 = 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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393 views

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python - How do I use m2crypto to validate a X509 certificate chain in a non-SSL setting

I'm trying to figure out how to, using m2crypto, validate the chain of trust from a public key version of a ... like that in m2crypto? 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 2.7 - group data by season according to the exact dates

i have a csv file containing 4 years of data and i am trying to group data per season over the 4 years , ... result : where am i mistaken ? 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 - scipy.integrate.quad gives wrong result on large ranges

I am trying to integrate over the sum of two 'half' normal distributions. scipy.integrate.quad works fine when I ... .0) Why is this happening? 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 - Open file for reading and writing with truncate

How do I open a file for reading and writing that is also truncated to 0? I've tried: f = open(PATH, ... ) Same behavious as the previous code. 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 - Advanced slicing when passed list instead of tuple in numpy

In the docs, it says (emphasis mine): Advanced indexing is triggered when the selection object, obj, is a non-tuple ... # basic indexing!!?? 0.0 See Question&Answers more detail:os...

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

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595 views

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python - Overlapping axis tick labels in logarithmic plots

I have some code that worked very well a year or so ago using pyplot; I made a plot using plt.plot(x,y) ... did it change in the first place? See Question&Answers more detail:os...

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

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232 views

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python - sys.path() and PYTHONPATH issues

I've been learning Python, I'm working in 2.7.3, and I'm trying to understand import statements. The ... work at the nitty-gritty level? See Question&Answers more detail:os...

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

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