Spyder complains about some basic commands

zkurtz Published at Dev

zkurtz

Here is some code that runs with no problem:

enter image description here

When I hover over the warning triangles, Spyder tells me that datetime and vstack are "undefined". But they seem to be defined, since the code runs. How can I make those warning triangles go away?

Copy-able code here:

# -*- coding: utf-8 -*-
#%%
import numpy as np
x = np.array([0, 1, 2])
this_year = datetime.date.today().year
y = vstack((x,x))
#%%

Padraic Cunningham

import datetime and use np.vstack

You have not imported the datetime module and vstack is part of numpy which you imported as np.

I don't see how the code could run without importing datetime and using np.vstack.

Typing the commands into ipython gives NameError: name 'datetime' is not defined:

In [3]: import numpy as np

In [4]: x = np.array([0,1,2])

In [5]: this_year = datetime.date.today().year
---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-5-a5c59948ea66> in <module>()
----> 1 this_year = datetime.date.today().year

NameError: name 'datetime' is not defined

your code runs because I think there is a site-packages/spyderlib/scientific_startup.py that imports modules automatically, numpy is included as must datetime.

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