title: How to create the tslib file when the error reads "Unable to open tslib.pyx: File not Found"?
body: <p>I am trying to pull finance data from online using pandas and pandas-datareader and a key file in the program seems to be missing. </p>
  
  <p>I have tried creating the file and continuing but I have no idea what this code is supposed to do so that did not work. I have tried uninstalling pandas, pandas-datareadr, in conda install and pip install. I have tried re-installing all of ananconda and visual studio code to no avail.</p>
  
  <pre><code>import datetime as dt 
  now = dt.datetime.now()
  import matplotlib.pyplot as plt
  from matplotlib import style
  import pandas as pd 
  import pandas_datareader.data as web
  
  style.use('ggplot')
  start = dt.datetime(2010,1,1)
  end = dt.datetime.now
  df = web.DataReader('IIPR', 'yahoo', start, end)
  print(df.head)
  </code></pre>
  
  <p>ERROR </p>
  
  <p>(base) C:\Users\Chris\Desktop\Python>cd c:\Users\Chris\Desktop\Python &amp;&amp; cmd /C "set "PYTHONIOENCODING=UTF-8" &amp;&amp; set "PYTHONUNBUFFERED=1" &amp;&amp; C:\Users\Chris\Anaconda3\python.exe c:\Users\Chris.vscode\extensions\ms-python.python-2018.12.1\pythonFiles\ptvsd_launcher.py
  --default --client --host localhost --port 55519 c:\Users\Chris\Desktop\Python\FinanceBasics.py "
  Backend Qt5Agg is interactive backend. Turning interactive mode on.</p>
  
  <p>Unable to open 'tslib.pyx': File not found (file:///c:/users/chris/desktop/python/pandas/_libs/tslib.pyx).</p>
  
  <p>I expect the code to create a data frame with finance data pulled from yahoo (I also understand that there are some problems with yahoo finance API and others but I have not been able to arrive at the step in my code). </p>