Recent questions tagged Python

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I have 23 bits represented as a string, and I need to write this string to a binary file as 4 bytes. The last byte ... , 255, 61, 0] to the file 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 sum be faster on lists

This is somehow a follow-up to this question So first, you'll notice that you cannot perform a sum on ... -in to flatten lists efficiently) 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 _imagingtk

I wanted to start using Tkinter with python and have following code: #!/usr/bin/python from Tkinter import * from ... python version is 2.7.3 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 - pandas sort a column by values in another column

I have a dataset that I want to sort and assign rank based on it. Suppose it has two columns, one is year and the ... 2 1 4 2007 3 2 1 2007 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 - Iterator over all partitions into k groups?

Say I have a list L. How can I get an iterator over all partitions of K groups? Example: L = [ 2,3,5,7,11, 13], K = ... ,), (3, 11), (5, 7)) === 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 - OSError: No Default Input Device Available

I am trying speech recognition with SpeechRecognition package in python and facing problem when trying to work with ... had it as IOError. 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 - rename files in zip folder using zipmodule

I was wondering if anyone knows how I can rename a file called "logo.png" in my zip folder under ("fw/ ... ), using python's zip module. 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 - Resampling a multi-index DataFrame

I want to resample a DataFrame with a multi-index containing both a datetime column and some other key. The ... how to overcome this issue? 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 - Converting pandas DatetimeIndex to 'float days format' with Matplotlib.dates.datestr2num

Some Matplotlib methods need days in 'float days format'. datestr2num is a converter function for this, but it falls ... is there a better way? 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 - Pandas equivalent of SQL non-equi JOIN

So I've got 2 data-frames I'd like to merge together. I'm merging on 3 columns, 2 is an easy join. ... df1.year > df2.year_min) Any assistance? 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 error messages when using pip install, pip list ect

I was attempting to fix another issue when i tried to do pip uninstall scikit-learn After doing that I received ... advice would be a blessing! 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 - Simple way to convert a string to a dictionary

What is the simplest way to convert a string of keyword=values to a dictionary, for example the following string: ... do. Any ideas? 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 - read_csv with missing/incomplete header or irregular number of columns

I have a file.csv with ~15k rows that looks like this SAMPLE_TIME, POS, OFF, HISTOGRAM 2015-07-15 16:41:56 ... any idea of a possible solution ? 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 - Building Speech Dataset for LSTM binary classification

I'm trying to do binary LSTM classification using theano. I have gone through the example code however I want to ... 's would also be welcome. 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 - No module named graphframes Jupyter Notebook

I'm following this installation guide but have the following problem with using graphframes from pyspark import ... advice and help. 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 - numpy all differing from builtin all

What is the reason for this weirdness in numpy's all? >>> import numpy as np >>> np.all(xrange(10)) False >>> np.all(i for i in xrange(10)) 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 - Weird MRO result when inheriting directly from typing.NamedTuple

I am confused why FooBar.__mro__ doesn't show <class '__main__.Parent'> like the above two. I still don't know ... 'tuple'>, <class 'object'>) 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 - Numpy slicing with bound checks

Does numpy offer a way to do bound checking when you slice an array? For example if I do: arr = np.ones([2, ... out of the bounds of an array? 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 - Pythonic way to strip all 0's from the front of a string

I have a string that will later be converted with int(). It is three digits, anywhere from 0 to 3 of ... the string empty, causing an error. 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 - PIL(low) and multi-page TIFFS

This should be relatively easy, but who knows... Is there a way to retrieve the number of frames in a ... stack until seek raises an error? 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 - Allow positional command-line arguments with nargs to be seperated by a flag

I have a program using argparse. It takes 1 required positional argument, 1 optional positional argument, and 1 flag argument ... C'], a = None) 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 - Keras: Accuracy Drops While Finetuning Inception

I am having trouble fine tuning an Inception model with Keras. I have managed to use tutorials and documentation ... but they appear unrelated. 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 - Reindexing a specific level of a MultiIndex dataframe

I have a DataFrame with two indices and would like to reindex it by one of the indices. from ... Panel objects are deprecated... 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 - pandas split list into columns with regex

I have a string list: content 01/09/15, 10:07 - message1 01/09/15, 10:32 - message2 01/09/15, ... afterwards) Any help would be appreciated. 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 - get_xticklabels() contains empty text instances

I am trying to rotate the x tick labels in a plot. I created a general function that plots in the style ... return labels unedited. Any advice? 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 - Config file to define JSON Schema Structure in PySpark

I have created a PySpark application that reads the JSON file in a dataframe through a defined Schema. code ... changing the main PySpark 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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451 views

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python - Jupyter notebook kernel not connecting

I have previously used Jupyter Notebook (python 2 and 3) on my mac. After not using ... 4666-ad9f-fcdf8db505f3:3F75F379F865488D8379D3BB7FC0BF0F 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 - Shortcut for super(type(self), self)

I often do this when overriding a method in a sub class: def method_x(self): x = super(type(self), self). ... for super(type(self), self) ? See Question&Answers more detail:os...

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

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