How do you split reading a large csv file into evenly-sized chunks in Python?
In a basic I had the next process.
python
How to answer to prompts automatically with python fabric?
I want to run a command which prompts me to enter yes/no or y/n or whatever. If I just run the command local("my_command") then it stops and asks me for input. When I type what is needed, script continues to work. How can I automatically respond to the prompt?
Not able to parse a .csv file uploaded using Flask
I am trying to upload a CSV file, work on it to produce results, and write back (download) a new CSV file containing the result.
I am very new to Flask and I am not able to get a “proper” csv.reader object to iterate and work upon.
Here is the code so far,
Python Sound (“Bell”)
I’d like to have a python program alert me when it has completed its task by making a beep noise. Currently, I use import os and then use a command line speech program to say “Process complete”. I much rather it be a simple “bell.”
Interpolation on DataFrame in pandas
I have a DataFrame, say a volatility surface with index as time and column as strike. How do I do two dimensional interpolation? I can reindex but how do i deal with NaN? I know we can fillna(method='pad') but it is not even linear interpolation. Is there a way we can plug in our own method to do interpolation?
How can I control what scalar form PyYAML uses for my data?
I’ve got an object with a short string attribute, and a long multi-line string attribute. I want to write the short string as a YAML quoted scalar, and the multi-line string as a literal scalar:
Python: AttributeError: ‘_io.TextIOWrapper’ object has no attribute ‘split’
I have a textfile, let’s call it goodlines.txt and I want to load it and make a list that contains each line in the text file.
Django Blob Model Field
How do you store a “blob” of binary data using Django’s ORM, with a PostgreSQL backend? Yes, I know Django frowns upon that sort of thing, and yes, I know they prefer you use the ImageField or FileField for that, but suffice it to say, that’s impractical for my application.
Edit existing excel workbooks and sheets with xlrd and xlwt
In the documentation for xlrd and xlwt I have learned the following:
MSSQL2008 – Pyodbc – Previous SQL was not a query
I can’t figure out what’s wrong with the following code,
The syntax IS ok (checked with SQL Management Studio), i have access as i should so that works too.. but for some reason as soon as i try to create a table via PyODBC then it stops working.