[Tutor] NumPy Generates ValueError: Some errors were detected ! Line #9 (got 42 columns instead of 1)

[Cameron Simpson]

On 29Sep2019 10:44, David <bouncingcats at gmail.com> wrote:
>On Sun, 29 Sep 2019 at 02:36, Stephen P. Molnar <s.molnar at sbcglobal.net> wrote:
>> Thank you for your reply. There are, in fact, hidden characters in 
>> the input file (cat -A ...):
>>
>> > ^IRMSD TABLE$
>> > ^I__________$
>> > $
>> > _____________________________________________________________________$
>> >      |      |      |           |         |                 |$
>> > Rank | Sub- | Run  | Binding   | Cluster | Reference       | Grep$
>> >      | Rank |      | Energy    | RMSD    | RMSD            | Pattern$
>> > _____|______|______|___________|_________|_________________|___________$
>> >    1      1      8       -7.23      0.00     93.07 RANKING$
>> >    1      2      9       -6.79      1.39     92.64 RANKING$
>> >    2      1     16       -7.18      0.00     93.19 RANKING$
[...]
>Depending on the problem you are having, it can be helpful
>to check for non-visible characters that might upset your
>parser, so thanks for letting us know that you did this 'cat -A'.
>
>But I wonder why you say "There are, in fact, hidden characters in the
>input file".
>
>Are you aware that '^I' is how 'cat -A' represents a tab
>character, and that '$' is how it represents a newline character?

Well, "end of line". But I'm being overly picky.

>I don't think either of these will cause you any trouble in
>this case. And I don't see any other hidden characters.

Except that there is indeed whitespace in his display above, and it 
isn't TAB characters. I suspect some weirdness with his initial 
cut/paste.

Cheers,
Cameron Simpson <cs at cskk.id.au>