There’s a DataFrame in pyspark with data as below: What I expect is returning 2 records in each group with the same user_id, which need to have the highest score. Consequently, the result should look as the following: I’m really new to pyspark, could anyone give me a code snippet or portal to the …
pysftp — paramiko SSHException, Bad host key from server
I’m trying to connect to a remote host via pysftp: However, I get a weird exception raised that I can’t find much detail on. I found a related question that suggested I run ssh-keygen -R [host] to replace the key in my known_hosts file — once I did that, I got a new error: Now, if I try to s…
subclassing dict; dict.update returns incorrrect value – python bug?
I needed to make a class that extended dict and ran into an interesting problem illustrated by the dumb example in the image below. Why is d.update() ignoring the class’s __getitem__? EDIT: This is in python2.7 which does not appear to contain collections.UserDict Thinking UserDict.UserDict is the equiv…
How to programmatically update data in WFS geoserver layer
I am building an application where the user retrieves all the features of a geoserver layer (store: postgres) and display them on a table. For doing this I use the OWSLib (get_feature). Now I need to add the functionality of editing the data (WFS-T). As far as I know OWSLib doesn’t provide an add/update…
Alternative of urllib.urlretrieve in Python 3.5
I am currently doing a course on machine learning in UDACITY . In there they have written some code in python 2.7 but as i am currently using python 3.5 , i am getting some error . This is the code I tried urllib.request . But still gives me error . I am using PyCharm as my IDE . Answer
“OverflowError: Python int too large to convert to C long” on windows but not mac
I am running the exact same code on both windows and mac, with python 3.5 64 bit. On windows, it looks like this: However, this code works fine on my mac. Could anyone help explain why or give a solution for the code on windows? Thanks so much! Answer You’ll get that error once your numbers are greater …
Specifying both ‘fields’ and ‘form_class’ is not permitted
I have the following form, which I want render it with Django crispy forms. This is my views.py This is my urls.py project main file : This is my medical_encounter_information/urls.py In my forms.py file I have: The template medical_encounter_information/templates/medical_encounter_information/rehabilitations…
Send table as an email body (not attachment ) in Python
My input file is a CSV file and by running some python script which consists of the python Tabulate module, I have created a table that looks like this below:- tabulate_output or I would like to send the this table in the email body and not as an attachment using python. I have created a sendMail function and…
Array of tuples necessary for generate_from_frequencies method in Python wordcloud
I am trying to make a word cloud in Python from the significance of strings and their corresponding data values in an Excel document. The generate_from_frequencies method takes a frequencies parameter which the docs say is supposed to take an array of tuples. Partial code from wordcloud source code: I tried u…
pyspark, Compare two rows in dataframe
I’m attempting to compare one row in a dataframe with the next to see the difference in timestamp. Currently the data looks like: I’ve tried mapping a function onto the dataframe to allow for comparing like this: (note: I’m trying to get rows with a difference greater than 4 hours) But IR…