Recent questions tagged Python

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python - Pandas bar plot with binned range

Is there a way to create a bar plot from continuous data binned into predefined intervals? For example, In[1]: df Out[1]: ... 1] 3 (1, 1.001] 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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python - Combining text stemming and removal of punctuation in NLTK and scikit-learn

I am using a combination of NLTK and scikit-learn's CountVectorizer for stemming words and tokenization. Below is ... in this second version? 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 - Performance of various numpy fancy indexing methods, also with numba

Since for my program fast indexing of Numpy arrays is quite necessary and fancy indexing doesn't have a good ... link to the followup question. 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 - Why does scipy.optimize.curve_fit not fit to the data?

I've been trying to fit an exponential to some data for a while using scipy.optimize.curve_fit but i'm ... 16878548643e-07, 9.18389990067e-07] See Question&Answers more detail:os...

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

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259 views

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python - Draw polygons more efficiently with matplotlib

I have a dateset of around 60000 shapes (with lat/lon coordinates of each corner) which I want to draw on a map ... and add them to the map? 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 - Django: How to override unique_together error message?

In a model's Meta class, I define a unique_together. I have a ModelForm based on this model. When I call ... override a non field error message? 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: assign an index to each group identified by groupby

When using groupby(), how can I create a DataFrame with a new column containing an index of the group number, ... idx indexes doesn't matter) See Question&Answers more detail:os...

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

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199 views

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python - Detect socket hangup without sending or receiving?

I'm writing a TCP server that can take 15 seconds or more to begin generating the body of a response to ... no data is actually transmitted. 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 - Linear Regression on Pandas DataFrame using Sklearn ( IndexError: tuple index out of range)

I'm new to Python and trying to perform linear regression using sklearn on a pandas dataframe. This is ... of this discussion community. 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 I disable pylint unused import error messages in vs code

How do I disable these error messages from popping up in the problems box in vs 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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366 views

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python - Get the value of a checkbox in Flask

I want to get the value of a checkbox in Flask. I've read a similar post and tried to use the output of ... == 'matchwithpairs': # do something 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 - Reading Excel file is magnitudes slower using openpyxl compared to xlrd

I have an Excel spreadsheet that I need to import into SQL Server on a daily basis. The spreadsheet will contain ... advice on how to proceed? See Question&Answers more detail:os...

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

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125 views

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python - Loop through all CSV files in a folder

I'm trying to loop through only the csv files in a folder that contains many kinds of files and many folders, I ... there a way of doing 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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302 views

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python - Regression with Date variable using Scikit-learn

I have a Pandas DataFrame with a date column (eg: 2013-04-01) of dtype datetime.date. When I include that ... must be a string or a number 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 - The "next" parameter, redirect, django.contrib.auth.login

I'm trying to redirect users to custom url "/gallery/(username)/" after successfully logging in. It currently ... writing my own login view. See Question&Answers more detail:os...

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

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132 views

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python - Check if module exists, if not install it

I want to check if a module exists, if it doesn't I want to install it. How should I do this? ... import keyring except ImportError: print 'f' See Question&Answers more detail:os...

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

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330 views

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python - How to download a youtube video using the youtube's API?

I looked at the python's API overview: Developer's Guide: Python But there is no reference to how ... I get information regarding downloading? See Question&Answers more detail:os...

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

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347 views

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python - Pyspark: show histogram of a data frame column

In pandas data frame, I am using the following code to plot histogram of a column: my_df.hist(column = ' ... am in Jupyter Notebook) 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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263 views

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python - Installing tensorflow with anaconda in windows

I have installed Anaconda on Windows 64 bit. I have downloaded PyCharm for creating a project and in the terminal ... How should I install 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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python - Converting PDF to images automatically

So the state I'm in released a bunch of data in PDF form, but to make matters worse, most (all? ... 're relatively lightweight, and readable. See Question&Answers more detail:os...

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

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845 views

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python - SQLAlchemy - build query filter dynamically from dict

So I have a dict passed from a web page. I want to build the query dynamically based on the dict. I know ... there. Any help would be awesome. See Question&Answers more detail:os...

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

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163 views

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python - How do I develop against OAuth locally?

I'm building a Python application that needs to communicate with an OAuth service provider. The SP requires me to ... ? Is this even possible? See Question&Answers more detail:os...

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

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253 views

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python - How to make a 2d numpy array a 3d array?

I have a 2d array with shape (x, y) which I want to convert to a 3d array with shape (x, y, 1). Is there a nice Pythonic 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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350 views

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python - How to serialize Django queryset.values() into json?

I have a model that has many fields, however for this problem I only need 3 of those fields. When I ... 'json', queryset, ensure_ascii=False) See Question&Answers more detail:os...

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

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261 views

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python - Converting int arrays to string arrays in numpy without truncation

Trying to convert int arrays to string arrays in numpy In [66]: a=array([0,33,4444522]) In [67]: ... your string without throwing an error. See Question&Answers more detail:os...

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

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146 views

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python - What does a "version file" look like?

I've been googling this for ages now without results. The PyInstaller manual says: --version-file=FILE add a ... string formatting On the rest. See Question&Answers more detail:os...

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

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170 views

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python - Lazy module variables--can it be done?

I'm trying to find a way to lazily load a module-level variable. Specifically, I've written a tiny Python ... have to rely on a 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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268 views

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python - Convert column of date objects in Pandas DataFrame to strings

How to convert a column consisting of datetime64 objects to a strings that would read 01-11-2013 for today's ... has no attribute 'strftime' See Question&Answers more detail:os...

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

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