[pytables-users] Website tutorial error

[Christopher Turnbull]

<div id="inner-editor"><br class="Apple-interchange-newline">gcolumns =
h5file.create_group(h5file.root, "columns", "Pressure and Name")
h5file.create_array(gcolumns, 'pressure', array(pressure), "Pressure column
selection")</div>

gcolumns = h5file.create_group(h5file.root, "columns", "Pressure and Name")

h5file.create_array(gcolumns, 'pressure', array(pressure),

"Pressure column selection")

---------------------------------------------------------------------------NameError Traceback (most recent call last)<ipython-input-2-aec3a6161035> in <module>() 1 gcolumns = h5file.create_group(h5file.root, "columns", "Pressure and Name")----> 2 h5file.create_array(gcolumns, 'pressure', array(pressure), 3 "Pressure column selection")
NameError: name 'array' is not defined

[Christopher Turnbull]

Hey guys. This is the tutorial of pytables website; it's one of the first
steps, why wouldn't this be working out?

[Francesc Alted]

Which tutorial exactly? This seems like a newline has been introduced
inadvertently.

Post by Christopher Turnbull
Hey guys. This is the tutorial of pytables website; it's one of the first
steps, why wouldn't this be working out?
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[Christopher Turnbull]

The only one on the website- just a little way in under the 'Creating
Arrays' section:

http://www.pytables.org/usersguide/tutorials.html

[Francesc Alted]

Fixed in
https://github.com/PyTables/PyTables/commit/d5cebddfc8a0470090cd0231332893a4b863af79
.

Francesc

Post by Christopher Turnbull
The only one on the website- just a little way in under the 'Creating
http://www.pytables.org/usersguide/tutorials.html

[Christopher Turnbull]

Same issue still- I'm not sure it is, or maybe it's just an error on my
part, but for some reason it's not recognising array(pressure)
Hmm.

NameError Traceback (most recent call last)<ipython-input-6-7270eb3bd044> in <module>() 3 4 ----> 5 h5file.create_array(gcolumns, 'pressure', array(pressure), "Pressure column selection")
NameError: name 'array' is not defined

[David Dotson]

A `NameError` indicates that you are using a name that isn't in the namespace. The context of this statement in the tutorial is that this is creating a numpy array from whatever `pressure` is (probably a list). So you could do

```python

from numpy import array

```

to add numpy's `array` function for building numpy arrays from iterables.

David

Same issue still- I'm not sure it is, or maybe it's just an error on my part, but for some reason it's not recognising array(pressure)
Hmm.
NameError Traceback (most recent call last)
<ipython-input-6-7270eb3bd044> in <module>() 3 4 ----> 5h5file.create_array(gcolumns, 'pressure', array(pressure), "Pressure column selection")NameError: name 'array' is not defined
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[Christopher Turnbull]

Yep, thanks that seemed to resolve it.

So in the tutorial I guess we were supposed to do:

from numpy import *