Python Developer

I create a class for working with SQLAlchemy : class DbAbsLayer(object): def __init__(self): … Read more Sqlalchemy.exc.unboundexecutionerror: Could Not Locate A Bind Configured On Mapper Mapper|sellstable|sellers Or This Session

In Python, using the pandas library I would like to convert my minutely data into daily data. After… Read more Is There A More Efficient Way To Convert Periodicity Of An Intraday Ohlc Dataframe In Python

There's a xml file: I go to to to school. For some reason, I changed to &… Read more How To Convert < Into < In Lxml, Python?

I have a few different lists that I want to turn into a set and use to find the difference from ano… Read more What Is The Preferred Way To Compose A Set From Multiple Lists In Python

What is the difference? Don't they do the same thing - find the inside tags with given properti… Read more Beautifulsoup Difference Between Findall And Findchildren

I am doing numpy dot product on two matrices (Let us assume a and b are two matrices). When the sha… Read more Numpy Dot Operation Is Not Using All Cpu Cores

All tutorials simply import tkinter, I am wondering, though, why not import _tkinter? If my underst… Read more Import _tkinter Or Tkinter?

I plot a bar graph using matplotlib and everything works fine. When the 'text label' on X-a… Read more Xaxis Text Overlapping - Matplotlib

I am using Tweepy for getting all retweeters of a particular tweet. My code is as follows: for reTw… Read more Tweepy Get Retweeters Returning Max 100

Very often in the Windows 7 console if I run a python program twice very quickly that does if os.pa… Read more Permission Denied Doing Os.mkdir(d) After Running Shutil.rmtree(d) In Python

Is the any command line option in python to print the Exception/Error Class hierarchy? The output s… Read more Print The Python Exception/error Hierarchy

For a block like this: try: #some stuff except Exception: pass pylint raises warning W0703… Read more Pylint Warning On 'except Exception:'

I'm trying to configure apache-spark on MacOS. All the online guides ask to either download the… Read more Spark Installation And Configuration On Macos Importerror: No Module Named Pyspark

I am trying to modify this example so also have a second plot on top sharing the same X-axis. Unfor… Read more How Can I Have A Stacked Plot With A Shared X Axis And Multiple Y Axis On One Of The Plots?

I was trying to use this code to convert text to speech with Python 3.4, but since my computer'… Read more Python 3.4 - Text To Speech With Sapi

How can I send the information of a SSD disk during the create_intance() order? I see that in the d… Read more Softlayer Api Send Ssd Disk Information?

Ca Tên NVNL Check in Check out Thời gian làm việc trong ca Hỗ trợ ăn trưa 0 Ca Sáng … Read more Unsupported Operand Type(s) For -: 'datetime.time' And 'datetime.time'

My list is: a=[1,2,3,4] Now I want my list to be: a=[-1,-2,-3,-4] How can I change my list this w… Read more Modify A Large List Without Any Loops In Python

The following works in bash: ~$ echo $PYTHONPATH ~$ export PYTHONPATH=/path/to/test/folder ~$ echo… Read more How Can I Set Pythonpath In Fish?

I have a dataframe which contains data that were measured at two hours interval each day, some time… Read more Add Missing Timestamp Row To A Dataframe

I'm trying to raise an error in Jinja2, in a WTForm, the error should be raised if url input is… Read more Raising An Error In Wtform Using Jinja2

I am implementing python-rq to pass domains in a queue and scrape it using Beautiful Soup. So i am … Read more Python-rq Worker Closes Automatically

I want my setup.py to do some custom actions besides just installing the Python package (like insta… Read more How To Make Easy_install Execute Custom Commands In Setup.py?

I am using CPLEX with pyomo. I would like to set the parameter mip.limits.solutions = 1. How to do … Read more Setting Parameters In Pyomo

First of all my code (largely inspired from ZMQ doc http://zguide.zeromq.org/py:mtserver): import z… Read more Multithreading And Zmq Dealer/rep Hello World Doesn't Work

Well I think matplotlib got downloaded but with my new script I get this error: /usr/lib64/python2.… Read more How To Make A Histogram From A List Of Data

I am trying to crop a portion of an image as shown below using opencv / PIL . I want to crop the re… Read more Opencv Image Manipulation To Crop An Angled Section Of An Image In Python

I am trying to uninstall my current version of keras and install an older version using: !pip unins… Read more Proceed (y/n)? In Python

I have the following code which produces the plot shown. mport matplotlib.pyplot as plt import mat… Read more Sharing A Yaxis Label With Two Of Three Subplots In Pyplot

I have a bunch of classes which use 'special-methods': class Foo(object): 'Foo docst… Read more Include Specific Special-methods In Sphinx

Code Returning Correct value but not always returning a value In the following code, python is retu… Read more Why Is Scipy's Ndimage.map_coordinates Returning No Values Or Wrong Results For Some Arrays?

I have a logistic regression model using Pytorch 0.4.0, where my input is high-dimensional and my o… Read more Pytorch - Pick Best Probability After Softmax Layer

def is_odd(num): # Return True or False, depending on if the input number is odd. # Odd nu… Read more How To Determine If An Integer Is Even Or Odd

I attempted to perform a run using uwsgi on a simple test file. This follows the instructions from … Read more Uwsgi Unrecognized Option '--wsgi-file'

I am trying to use the excelent requests library in a frozen app. The code works fine when interpre… Read more Error Using Requests In A Frozen App

I've written a web interface for my python application. This functions beautifully when running… Read more Run Code Alongside A Flask Application

I'm trying to find the longest odd length palindrome, but the code I've written isn't g… Read more Get Odd Length Palindrome

My next step is if the input is not in the Fibonacci Series, the program has to give an output with… Read more How To Find The Nearest Fibonacci Series Number?

I have blank spaces in a csv sheet that I want to get rid of it. After searching for hours I reali… Read more Removing Blank Spaces From A Csv File Without Creating A New File

Note: I have a process that writes one line to stdout ('print('hello')) and waits for r… Read more Reliable Non Blocking Reads From Subprocess Stdout