Develop Reference

How to fix this "ImportError: cannot import name 'TweepError' from ..."?

The line given below:
from tweepy import API, Stream, OAuthHandler, TweepError
generates ImportError such as:
ImportError: cannot import name 'TweepError' from 'tweepy'
I have tried: from tweepy.errors import TweepError ,however it stills generates error as:
ImportError: cannot import name 'TweepError' from 'tweepy.errors'.
What is it that I am missing here?

TweepError has been replaced with TweepyException since the 4.0.0 (see the changelog).
So use from tweepy.errors import TweepyException (or from tweepy import TweepyException).
And replace TweepError with TweepyException in your code (or with a more specific exception).

Python caldav Attribute Error

I just installed caldav 0.5.0 using pip on Windows. I tried to use this code from the documentation:
from datetime import datetime
import caldav
from caldav.elements import dav, cdav
# Caldav url
url = "https://user:pass#hostname/caldav.php/"
client = caldav.DAVClient(url)
But I get this error:
AttributeError: module 'caldav' has no attribute 'DAVClient'
Does someone know what causes this issue?

It is because your file is named calendar.py, which causes some kind of collision somewhere. Renaming your file to something else will do the trick (it did for me).

Python: ImportError: cannot import name 'BeautifulSoup'

I have always used R and now trying to switch to Python.
I'm using Pycharm and found this error when running the following code:
import pandas as pd
from bs4 import BeautifulSoup
example1 = BeautifulSoup(train["review"][0],"lxml")
print (example1.get_text())
When I run it I have:
ImportError: cannot import name 'BeautifulSoup'
But I don't have any problem using the console. The rest of the code works fine both with the Run command/terminal and console.
Thank you for your help

Oh,I think you should check your file name or folder name.If there is a name that is already used in bs4 module,you will got ImportError.
Hope this helps.

Python : no JSON object could be decoded

I am trying to run this app:
https://github.com/bmjr/guhTrends
I have python 2.7.x running the following script at command line. I reckon it was written using python3.x. What is deprecated in the code below?
import urllib
import json
import matplotlib.pyplot as plt
dates = urllib.request.urlopen('http://charts.spotify.com/api/tracks/most_streamed/global/weekly/')
dataDates = json.loads(dates.read().decode())
the error:
Traceback (most recent call last):
File "DataMining.py", line 6, in <module>
dates = urllib.request.urlopen('http://charts.spotify.com/api/tracks/most_streamed/global/weekly/')
AttributeError: 'module' object has no attribute 'request'

That script won't work under python2 as urllib of python2 has no request module.
Use urllib2.urlopen instead of urllib.request if you want start running that script under python2 .
To get python script work on bith (python2 and python3) use six module which is Python 2 and 3 Compatibility Library.
from six.moves import urllib
import json
import matplotlib.pyplot as plt
dates = urllib.request.urlopen('http://charts.spotify.com/api/tracks/most_streamed/global/weekly/')
dataDates = json.loads(dates.read().decode())

You're requesting a resource that is not currently available (I'm seeing a 504). Since this could potentially happen any time you request a remote service, always check the status code on the response; it's not that your code is necessarily wrong, in this case it's that you're assuming the response is valid JSON without checking whether the request was successful.
Check the urllib documentation to see how to do this (or, preferably, follow the recommendation at the top of that page and use the requests package instead).

Import Exception DtdProcessing

I am getting the following error:
Cannot Import Name DtdProcessing
On this line:
from System.Xml import (DtdProcessing, ValidationType, XmlNodeType, XmlReader, XmlReaderSettings)
What could be causing this? Is there a possibility that I don't have the right version of .net installed?