ImportError: cannot import name Markup from jinja2

ImportError: cannot import name Markup from jinja2 if you want to fix this error just use the correct import statement

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How we can solve the nameerror: name plot_cases_simple is not defined

The reason you’re getting the NameError: name ‘plot_cases_simple’ is not defined error is because you’re trying to use a variable,

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type object ‘datetime.datetime’ has no attribute ‘timedelta’

AttributeError: type object ‘datetime.datetime’ has no attribute ‘timedelta’ message is generated by Python when you try to access the timedelta

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runtimewarning: invalid value encountered in true_divide

How this runtimewarning: invalid value encountered in true_divide occur? Cause of this runtimewarning: invalid value encountered in true_divide is by

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