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I'm trying to plot log graph of blackbody frequency range 10^ to 10^19 for different temperatures

http://import numpy as np, pylab as pl Nfreq, NT = 2000, 6 T = [ 3000, 5000,10000,20000,30000] f = np. ... 'Planck curve _.png', bbox_inches='tight', transparent=True) pl.show()...

asked May 26, 2022 in Technique[技术] by Sreekutty (100 points)

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python 3.x - Readable, controllable iterators?

I'm trying to craft an LL(1) parser for a deterministic context-free grammar. One of the things I'd like to be ... which is what I don't want. 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 append more than 200 downloaded tweets to dataframe?

I am downloading more than twitters rate cap using a loop; however, when I try to append the list it returns ... contain more than 200 tweets. 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 - Find different rows between 2 dataframes of different size with Pandas

I have 2 dataframes df1 and df2 of different size. df1 = pd.DataFrame({'A':[np.nan, np.nan, np.nan, 'AAA',' ... : the solution is A B 0 DDD NaN 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 Undefined variable from import error

I'm using virtualenv for Django project. From command line I can import modules hashlib and zipfile. But PyDev is ... .. What Can I do? 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 - Overlapping regex matches

I'm trying to create the following regular expression: return a string between AUG and (UAG or UGA or UAA) ... the errors in my regex pattern? 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 - 'Invalid input syntax for type inet' db error in Django app with postgres and Gunicorn+Nginx as reverse proxy

Can you help me decipher this rather esoteric error? Everything's fine when I fire up the application, but crashes ... related. Just ask away! 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 - window in pygame freeze while waiting

I'm using pygame for my game and its online but the problem is that whenever the main loop of the game waits ... //i.stack.imgur.com/b4Qx8.png 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 - Annotation of horizontal bar graphs in matplotlib

I need to annotate horizontal bar graphs. I am able to annotate vertical bar graphs using the example shown ... appreciated, 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 - Pandas boolean comparisson on dataframe

I am getting the error when I make a comparison on a single element in a dataframe, but I don't understand why. ... ? This makes no sense to 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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2.7k views

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python - this constructor takes no arguments

I'd like to make a simple calculator in Tkinter. I've got few lines of code and want to check if it works. But ... mainloop() Calc(T.Tk()).run() See Question&Answers more detail:os...

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

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2.7k views

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python - Selenium calendar picker: I can click manually but Selenium cant click

I am attempting to choose date on a calendar on this website. On the first calendar (date from) I can choose the ... '.format(month)) mm.click() 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 merge csv files onto a single file on condition and adding file name as a column?

I have multiple csv files on folder. The column headers are different but column datas are same. The number inside ... File2 4 112 113 119 117 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 - Pass connected SSL Socket to another Process

I am struggling to find a mechanism to send a request to the target server and when the socket has data to be ... Key from openssl's session ? See Question&Answers more detail:os...

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

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2.8k views

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python - How to sort a text file line-by-line

I need to sort a text file in ascending order. Each line of the text file starts with an index, as seen ... got a lot of experience coding. See Question&Answers more detail:os...

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

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2.4k views

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python - Swap slices of indexes using a function

Follow-up question of: Python swap indexes using slices r = ['1', '2', '3', '4', '5', '6', '7', '8'] If ... in r: swap(2:4,4:7) Is this correct? See Question&Answers more detail:os...

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

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2.6k views

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python 2.7 - DLL load failed with PyQGIS

I've already asked this question in the "gis.stackexchange" forum, but it seems to be more appropriate for ... included in the QGIS package). 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 - Odd behavior of numpy.all with object dtypes

Given an array of dtype=object, numpy.all/any return the last object. For example: >>> from string ... this information out more efficiently. See Question&Answers more detail:os...

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

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2.4k views

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python - Can I choose the parent class of a class from a fixed set of parent classes conditionally in the __init__ function?

I have a child class with two parents with identical function names. I need to decide (based on type of object being created) ... x() c('b').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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2.8k views

1 answer

python - Bar graph in subplot2grid

I want to have several subplots, two of which showing frames from a video feed, and a third showing computed ... data from subplots? 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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2.7k views

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python - How to make a Django-Rest-Framework API that takes POST data?

I'm building a Django application with Django-Rest-Framework APIs. I have built an API endpoint as follows. I want ... couldn't make it 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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2.3k views

1 answer

python - Find Nearest Transition in N-dimensional Array

I want to find index of the nearest transition in a numpy ndarray of integers given a current index in an ... unlike SVM and decision trees). See Question&Answers more detail:os...

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

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2.5k views

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python - Jupyter Notebook opens an empty browser

Before I've installed python 3.6 and update all (conda update --all) my Jupyter Notebook just stopped to works. ... not defined at VM17 tree:24 See Question&Answers more detail:os...

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

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2.6k views

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python 3.x - Invalid relative import to parent folder

Given the following folder structure scripts __init__.py prepare_dot_env.py random_folder __init__.py index.py Take the ... the catch 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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2.7k views

1 answer

python - Dragging object along x-axis in pygame

I want to be able to drag the blue object along the x-axis (black line) using mouse so that it does not ... ), object_1) pygame.display.update() See Question&Answers more detail:os...

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

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2.5k views

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python - Converting floating ratios to int

I need to convert float ratios to their integer equivalent 0.5:1 ---should convert to ---> 1:2 0 ... googling produced no results in this regard See Question&Answers more detail:os...

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

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2.4k views

1 answer

python - Excel Column Number to Text

When using openpyxl, there are times that I can only refer to columns in Excel worksheets via their ... least element and continue upwards See Question&Answers more detail:os...

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

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2.3k views

1 answer

python - I am trying to run appcfg.py from CMD. instead of deploying, its being edited in google chrome

I installed python 2.7.13 and the google original App Engine SDK for PHP. I created my first project ... picture chrome editing appcfg.py See Question&Answers more detail:os...

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

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