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PYTHON QUESTIONS

Problem Looping when Comparing Datetime Objects Between Two CSV Files
Problem Looping when Comparing Datetime Objects Between Two CSV Files
This might help you I have two csv files, where the first column is a time stamp. I ultimately want to get the difference between the two times for each row. , Few notes on your code.
TAG : python
Date : November 12 2020, 04:01 AM , By : steve534
Django OneToOneField with db_index=False vs OneToOneField
Django OneToOneField with db_index=False vs OneToOneField
Hope this helps OneToOneField implies that unique=True (as you can see explicitly in the source code), and unique=True implies that db_index=True, as noted in the documentation:
TAG : python
Date : November 12 2020, 04:01 AM , By : Rahul_M
How to remove from a list the strings that have less than N tokens?
How to remove from a list the strings that have less than N tokens?
I hope this helps . Given a list of strings, say: , You could use this list comprehension:
TAG : python
Date : November 12 2020, 04:01 AM , By : Mazor Vanunu
Button with 3 different options
Button with 3 different options
I wish did fix the issue. You have to implement a state machine, in this case it is better to create a custom button.
TAG : python
Date : November 12 2020, 04:01 AM , By : user2182058
Regular Expression to Match Text into Mutliple Groups
Regular Expression to Match Text into Mutliple Groups
wish of those help I'm trying to set up a regular expression to match text and I'd like a particular string to match with a separate group from the rest of the text if it is present. , You can try this mate
TAG : python
Date : November 12 2020, 04:01 AM , By : elad peled
Create a simple countdown timer Python
Create a simple countdown timer Python
should help you out Could someone give me a tip? I am attempting to create a countdown timer that will reset based on the episodes... , You're forgetting to reset your n.
TAG : python
Date : November 12 2020, 04:01 AM , By : user2182034
How to identify css inline attribute
How to identify css inline attribute
fixed the issue. Will look into that further Once you have parsed the html by tag type, you can search within the tags using any defining attribute. The text-transform:uppercase can be used in this case.
TAG : python
Date : November 12 2020, 04:01 AM , By : BieleckiA
Error in regular expression to find the text between parenthesis
Error in regular expression to find the text between parenthesis
this one helps. In pure regex, this would not be possible, so here is an idea that counts parenthesis:
TAG : python
Date : November 12 2020, 04:01 AM , By : Sabna Snehajan
Python Pandas Comparing attributes in datasets and calculating total number for specific city
Python Pandas Comparing attributes in datasets and calculating total number for specific city
With these it helps How would I go about this in Python Pandas? Would I use Groupby for question 2? I don't want a answer in code, just pseudocode or explanation of operations would be fine. , First match the city names
TAG : python
Date : November 12 2020, 04:01 AM , By : user2182006
How to refresh matplotlib chart in GTK3 with Python and Glade
How to refresh matplotlib chart in GTK3 with Python and Glade
should help you out It turns out that using self.parent() as a starting point was probably the most optimal choice given that I didn't want to rewrite the whole thing as a class. But: destroying/removing the child container containing the graph meant
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181974
numpy row/column to 1D vector?
numpy row/column to 1D vector?
Hope that helps You have matrices and not arrays, that's why in doesn't work.Create a view on the matrix and reshape it:
TAG : python
Date : November 11 2020, 04:01 AM , By : Hisham Sahrij
How to change values in specific rows depending on given condition in pandas?
How to change values in specific rows depending on given condition in pandas?
I think the issue was by ths following , You can vectorize this with pandas.Series.where:
TAG : python
Date : November 11 2020, 04:01 AM , By : leolelego
how to read in files without using a file path in Python
how to read in files without using a file path in Python
like below fixes the issue Python will look in the folder the file is in (the python file you're running). So, if you have analysis.py and Example.csv in the same folder, then yes, you can do what you're suggesting. If not, then Python can't read you
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181958
Car garage simulator- Generate random poisson distribution
Car garage simulator- Generate random poisson distribution
it helps some times A pure Python answer to the question in your title (which seems only loosely related to your overall question):
TAG : python
Date : November 11 2020, 04:01 AM , By : Yasemin Kolbaşı
Is there an efficient method of checking whether a column has mixed dtypes?
Is there an efficient method of checking whether a column has mixed dtypes?
it should still fix some issue Here is an approach that uses the fact that in Python3 different types cannot be compared. The idea is to run max over the array which being a builtin should be reasonably fast. And it does short-cicuit.
TAG : python
Date : November 11 2020, 04:01 AM , By : Manuela
Combine bfill() and ffill() functionality
Combine bfill() and ffill() functionality
may help you . Idea is create boolean mask and filter bfill with where, then ffill and last bfill again only for first values of first Series if starting by NaN:
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181886
Pixelwise 2D Radiometric Calibration
Pixelwise 2D Radiometric Calibration
hop of those help? If your goal is to vectorize polyfit then yes, this can be done but requires rewriting np.polyfit manually. Fortunately, it can be built on top of np.linalg.lstsq and the polynomial design matrix provided by np.vander. All in all,
TAG : python
Date : November 11 2020, 04:01 AM , By : Ujan Sengupta
Django nested requests
Django nested requests
wish helps you Well, take a look at your line species = [] You expect that there will be only urls, right? But it's not so, because you're appending to this list response data on this line: species.append(response_data). During your script execution
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181844
Ghost images show up when drawing rect with double buffering tech in PyQt5
Ghost images show up when drawing rect with double buffering tech in PyQt5
I hope this helps . In these cases it is to have 2 types of data that store different types of information: permanent and temporary information. In the case of the permanent, it must be the rectangle after releasing the mouse, saving it in the QPixma
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181825
Cannot create correct path to use it with os.system
Cannot create correct path to use it with os.system
I hope this helps . Try using os.path.join here. Don't end your path variable with a backslash, join will do that for you.
TAG : python
Date : November 11 2020, 04:01 AM , By : sumit
Return rows that are at the intersection of two lists using query function in pandas
Return rows that are at the intersection of two lists using query function in pandas
Hope that helps Actually, I was wrong. Looks like this is supported with the "python" engine.
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181777
Pandas Dataframe: delete rows with DateTime within 12 hours
Pandas Dataframe: delete rows with DateTime within 12 hours
wish helps you Use DataFrameGroupBy.diff and filter byboolean indexing with 2 boolean masks - comparing with Timedelta chained with check missing rows by | for bitwise OR:
TAG : python
Date : November 11 2020, 04:01 AM , By : Issac
How to pivot dataframe without having to set index?
How to pivot dataframe without having to set index?
With these it helps Just take the DataFrame.transpose:
TAG : python
Date : November 11 2020, 04:01 AM , By : kathy
how can I connect, from a flask app, to a remote elasticsearch cluster on aws?
how can I connect, from a flask app, to a remote elasticsearch cluster on aws?
Does that help I hope this will help other people. elasticsearch defaults to Port 9200 so it is necessary to open such a Port on the EC2 server as such:
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181746
Find All Possible Fixed Size String Python
Find All Possible Fixed Size String Python
it should still fix some issue You can use itertools.product for this. It returns a generator of sequences of fixed length. As you order your strings first by length and then lexicographically, you may use something like this
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181737
Module 'requests' doesn't go through with the login
Module 'requests' doesn't go through with the login
To fix the issue you can do login_username and login_password are not all the necessary parameters. If you look at the /login/ POST request in the browser developer tools, you would see that there is also a _token being sent.This is something you wou
TAG : python
Date : November 11 2020, 04:01 AM , By : Noel Hernández
Python postgreSQL sqlalchemy query a DATERANGE column
Python postgreSQL sqlalchemy query a DATERANGE column
wish helps you I have a booking system and I save the booked daterange in a DATERANGE column: , The query
TAG : python
Date : November 11 2020, 04:01 AM , By : manju
How to use the values in a column to identify which column to analyse in a different dataframe?
How to use the values in a column to identify which column to analyse in a different dataframe?
seems to work fine Use melt with groupby and size for MultiIndex Series:
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181719
Django Saving A Model With Form + Current User Data
Django Saving A Model With Form + Current User Data
Any of those help I am assuming your form is not validating for some reason, and you need to catch it to see what might be going wrong. So you can update your view like this:
TAG : python
Date : November 11 2020, 04:01 AM , By : Johny33
Return rows that match a larger partial string of a string
Return rows that match a larger partial string of a string
Hope that helps I have a dataframe df that looks like the following: , The following should do
TAG : python
Date : November 11 2020, 04:01 AM , By : dompton
How to call a function programmatically in Python specifying a module programmatically also?
How to call a function programmatically in Python specifying a module programmatically also?
it should still fix some issue What you want is importlib.import_module.
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181675
Can I get pytesseract command to work properly in pycharm which is throwing errors
Can I get pytesseract command to work properly in pycharm which is throwing errors
Hope this helps Since I guess gray_scale_image is output from OpenCV and is therefore numpy array as error suggestsAttributeError: 'numpy.ndarray' object has no attribute 'read'
TAG : python
Date : November 11 2020, 04:01 AM , By : Hyukjoon Lee
How to delete the same string in python
How to delete the same string in python
like below fixes the issue I use python3.6 I want to delete the same string,and this is my code. , I created Union_list to keep track of what already got printed:
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181643
pip getting package from python's pypi instead of my own server
pip getting package from python's pypi instead of my own server
it should still fix some issue Ok, the problem was the way pip works. If a version is not specified, it will always download the latest version, even though that means get it from the extra index while another one exists in the main index.In my case,
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181632
Image denoising - Performing a task on each element of image matrix
Image denoising - Performing a task on each element of image matrix
seems to work fine I have been doing image processing lately and I chose Python to be my implementation language. , To get expected output you just need to change the following line:
TAG : python
Date : November 11 2020, 04:01 AM , By : Martin Körner
Creating IsHoliday feature in pandas dataframe
Creating IsHoliday feature in pandas dataframe
this one helps. You might want to use np.where for that:
TAG : python
Date : November 11 2020, 04:01 AM , By : user2181613
Can I achieve precise control over location of .c files generated by cythonize?
Can I achieve precise control over location of .c files generated by cythonize?
will help you So it seems like you've run into a bug. Here's the relevant section of code in Cython. Basically, cythonize will try to build the paths to your .c and .o files as so:
TAG : python
Date : November 10 2020, 04:01 AM , By : user116023
"Failed building wheel for regex" while installing pip package
"Failed building wheel for regex" while installing pip package
wish help you to fix your issue WSL is unrelated to the issue, this is a fairly standard error.Ensure the following packages are installed. Install them using apt-get install packagename. The issue this particular time was resolved by installing pyth
TAG : python
Date : November 10 2020, 04:01 AM , By : user2181550
Heroku EOFError for only two line python code
Heroku EOFError for only two line python code
wish helps you You can still have input, but in a bit different way. Check out this Send data from a textbox into Flask?Then once you have a simple app follow this tutorial to get it deployed https://devcenter.heroku.com/articles/getting-started-with
TAG : python
Date : November 10 2020, 04:01 AM , By : user2181549
I'm trying to match dictionary keys with its values based on some rules, without using additional libraries
I'm trying to match dictionary keys with its values based on some rules, without using additional libraries
Does that help This seems to work for your specified dictionaries, though there might be an edge case or two for which it doesn't work properly. If you have any cases this doesn't work for, then the problem is very likely to be with the if/elif/else
TAG : python
Date : November 10 2020, 04:01 AM , By : user2181517
List comprehension with nested list, if statement and range steps
List comprehension with nested list, if statement and range steps
seems to work fine You'll need a second iteration in your comprehension since your input_[i][2] is a nested-(nested)-list. So you'll need to iterate through each of those items (I'll call them filenames) in your comprehension. You could also iterate
TAG : python
Date : November 10 2020, 04:01 AM , By : dstyp
custom layer with diagonal weight matrix
custom layer with diagonal weight matrix
To fix this issue Not quite sure what you want to do exactly, because, for me, diagonal is something for a square matrix, implying your layer input and output dimensionality should be unchanged. Anyway, let's talk about the square matrix case first.
TAG : python
Date : November 10 2020, 04:01 AM , By : Noroo
Is it possible to write multiple statements in Python list comprehension?
Is it possible to write multiple statements in Python list comprehension?
This might help you I am trying to read an HTML table into pandas and then print and also append the DataFrames to a list as well. Something like: , Not directly, you would either need to expand it to a regular loop:
TAG : python
Date : November 10 2020, 04:01 AM , By : Nalin Gupta
Sampling after groupby on each group in python
Sampling after groupby on each group in python
I hope this helps . You can use pandas.Series.sample to get a random sample of each category and you can set the number of elements to be randomly distributed in 1 ... min(4, len(category)):
TAG : python
Date : November 10 2020, 04:01 AM , By : Denise Gomez
pandas cleaning Dataframe
pandas cleaning Dataframe
hop of those help? I think you can create DatetimeIndex in read_csv by parameters parse_dates and index_col:
TAG : python
Date : November 10 2020, 04:01 AM , By : user2181498
Django does not update with UpdateView
Django does not update with UpdateView
this will help You are submitting the form to the product_list view - you should submit it to the update view instead.Depending on your URLs, the form should look something like:
TAG : python
Date : November 10 2020, 04:01 AM , By : Paul Embleton
How to translate a stream of '0' and '1' to characters?
How to translate a stream of '0' and '1' to characters?
I think the issue was by ths following , That function is taking 7 binary digits at a time and converting them to a character. Change it to convert 8 digits at a time.
TAG : python
Date : November 10 2020, 04:01 AM , By : user2181489
Implement depth first tree traversal with stack in Python
Implement depth first tree traversal with stack in Python
To fix the issue you can do If given a JSON list of locations, for example: , You can build this "tree" from your given data as follows:
TAG : python
Date : November 10 2020, 04:01 AM , By : AbjectFailure
How to use validator in Django depending on the database data?
How to use validator in Django depending on the database data?
fixed the issue. Will look into that further welcome to StackOverlow. This is my first answer so if it works i would appreciate if you can click "accept as answer"You can use clean() method for your model. More here:
TAG : python
Date : November 10 2020, 04:01 AM , By : Paldari
How to reshape/"topple" a pandas dataframe
How to reshape/"topple" a pandas dataframe
will be helpful for those in need A more pythonic way
TAG : python
Date : November 10 2020, 04:01 AM , By : user2181449
Python package both as application and as lib
Python package both as application and as lib
wish of those help Your code is perfectly fine. The problem is you are trying to run the code in wrong way.You should not have to modify sys.path in order to run your tests (or in general any sys.path.insert(...) is a code smell. In 99% of the cases
TAG : python
Date : November 10 2020, 04:01 AM , By : user2181427
Insert function inside list with arguments and use them
Insert function inside list with arguments and use them
this will help I have a parameter like this: params={ 'arg1':'a', 'arg2:'b', 'funcList':['x','y','z']}
TAG : python
Date : November 10 2020, 04:01 AM , By : user2181426
Python: String formatting to the right side
Python: String formatting to the right side
hope this fix your issue Here is my source code: , Try to format both values:
TAG : python
Date : November 10 2020, 04:01 AM , By : Kanupriya Tavri
Python - Output a list datatype to CNF
Python - Output a list datatype to CNF
this one helps. BearBrown's comment covers the most important part of the problem. I am adapting to it show how to write to file after joining pipe ('|') as needed.
TAG : python
Date : November 10 2020, 04:01 AM , By : lovro
Library construct, struct("string"/anythingElse) issue
Library construct, struct("string"/anythingElse) issue
Hope that helps varBytes[0] is a string where as what you need is the Int16ul object from the construct module.You need to turn the string into the object you can do this getting the object by its name with getattr applied to the module construct:
TAG : python
Date : November 10 2020, 04:01 AM , By : user2181403
Regex expression to extract title from PDF in Python
Regex expression to extract title from PDF in Python
I wish did fix the issue. I am reading PDF using textract. Inside of PDF, there are some titles in it. Some examples are: , Here’s an example that will work:
TAG : python
Date : November 10 2020, 04:01 AM , By : Nguyen Tuan
make regex in Python
make regex in Python
it fixes the issue Here, I'm making a (risky) assumption that there will always be the substring Error Code in your texts. So I modified your regex to '^\[(\d+),([0-9:]+)\]\s+(.+)\s+(Error\sCode:.+)$'. Running this in the shell:
TAG : python
Date : November 10 2020, 04:01 AM , By : Jayaram Sankarasetty
Replace an attribute of an instance with a property
Replace an attribute of an instance with a property
This might help you I would like to override an attribute with a property, but only on one instance. Here is how I try to solve it, but it does not do what I would like to: , Can it be done?
TAG : python
Date : November 10 2020, 04:01 AM , By : ArjanTheMagnificent
Create docker from tar with Python Docker API
Create docker from tar with Python Docker API
Does that help I want to use a remote docker host to build an image from an in memory tar with the Python Docker API. , Well. I found the solution. I had to call .getvalue() on fileobj.
TAG : python
Date : November 10 2020, 04:01 AM , By : user2181370
how to check if a string column in pyspark dataframe is all numeric
how to check if a string column in pyspark dataframe is all numeric
wish help you to fix your issue I have a PySpark Dataframe with a column of strings. How can I check which rows in it are Numeric. I could not find any function in PySpark's official documentation - , A simple cast would do the job :
TAG : python
Date : November 10 2020, 04:01 AM , By : Pubudu Tennakoon

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