Description of my usage: This is my project structure(basically base on Flask Web Development): Configuration in /babel.cfg and /app/__init__.py babel.cfg: app/__init__.py: Then I follow the Flask-Babel document Run $ pybabel extract -F babel.cfg -o messages.pot . Run $ pybabel extract -F babel.cfg -k lazy_ge…
Tag: python
Why does pyPdf2.PdfFileReader() require a file object as an input?
csv.reader() doesn’t require a file object, nor does open(). Does pyPdf2.PdfFileReader() require a file object because of the complexity of the PDF format, or is there some other reason? Answer It’s just a matter of how the library was written. csv.reader allows any iterable that returns strings (…
Matplotlib’s fill_between doesnt work with plot_date, any alternatives?
I want to create a plot just like this: The code: but with dates in the x axis, like this (without bands): the code: the problem is that fill_between fails when x values are date_time objects. Does anyone know of a workaround? DF is a pandas DataFrame. Answer It would help if you show how df is defined. What …
Why doesn’t the Python 2D array index order matter when used with colon ( : )
Creating a 2D array such as and indexing using the colon operator like this works as expected. It returns all of row 2. However, if I want to retrieve all of column 2, I would instinctively do But this also returns What is the reasoning behind this? I would intuitively think that this returns the column 2 of …
How to pass Python list to C function using Cython
I am using a Raspberry Pi to interface with custom hardware connected to the GPIO. The controlling software is written in Python, and the interface to the custom hardware is written in C, as it is a much faster C implementation. I now need to start calling my C functions from my Python, and have recently been…
Ordered Logit in Python?
I’m interested in running an ordered logit regression in python (using pandas, numpy, sklearn, or something that ecosystem). But I cannot find any way to do this. Is my google-skill lacking? Or is this not something that’s been implemented in a standard package? Answer Update: Logit and Probit Ord…
Matplotlib error: libfreetype.6.dylib
I’m trying to run the following python script (I’m using Vim): When I do, I get the following: I tried reinstalling brew, reinstalling freetype, matplotlib, and numpy in brew, and I uninstalled MacPorts with no change in the error. Suggestions? EDIT: After uninstalling MacPorts and then doing anot…
GridSearchCV no reporting on high verbosity
Okay, I’m just going to say starting out that I’m entirely new to SciKit-Learn and data science. But here is the issue and my current research on the problem. Code at the bottom. Summary I’m trying to do type recognition (like digits, for example) with a BernoulliRBM and I’m trying to …
zip file and avoid directory structure
I have a Python script that zips a file (new.txt): When I do this I get the zip file. But when I try to unzip the file I get the text file inside of a series of directories corresponding to the path of the file i.e I see a folder called root in the result directory and more directories within
What are `lexpr` and `ApplicationExpression` nltk?
What exactly does lexpr mean and what do the folloring r’/F x.x mean? Also what is Application Expression? Answer See http://goo.gl/zog68k, nltk.sem.logic.Expression is: “””This is the base abstract object for all logical expressions””” There are many types of logical…