Quantstats (Python library) does not display plot
Quantstats is a commonly used library, but I have problems in running examples given its website. The following code is an example from Quantstats webpage, but it does not display a figure.
import quantstats as qt
stock = qt.utils.download_returns('FB')
qt.plots.snapshot(stock)Furthermore, the following code (also an example from Quantstats website) raise an error message "ValueError: file must be specified"
qt.reports.html(stock, "SPY")For your information, I am running Python in Pycharm.
Any comment and advice would be very much appreciated.
1 Answer
ultados de tradução Hello @david78.
I had the same error. Reading the project code on github, I found that:
`if the output is None and not _utils._in_notebook():
raise ValueError("`file` must be specified")`
The _in_notebook() function checks your environment (notebook, command line, etc).
The output parameter determines whether you download a file or not.
I still had some issues with compatibility requirements for plotting on Jupyter or Google Colab notebooks, and with me plotting on notebooks still has a problem.
But, I found that if you include any value in the output parameter, you will get an html file in your local path. For example, I passed output='analytics.html' or output=True and I can get the html report file in my local path. The final code was:
qs.reports.html(stock, "SPY", output=True).
In Pycharm you don't have a built-in graph, so the specified output parameter solves your problem.
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