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web development
Note: If you are on a Unix-based system, don’t forget
to add “chmod +x generate_timing_data.py” to
Test Drive set the executable bit.

Your web server should still be running from earlier. If it isn’t, start it again. In your web browser,
return to the coach’s home page, then select the hyperlink to display the list of athletes, select Sarah,
and then press the button.

This all
looks OK.

Ah, phooey!
Something’s not
quite right here.
Where’s Sarah’s
top three times?

File Edit Window Help HoustonWeHaveAProblem
$ python3 simple_httpd.py
Starting simple_httpd on port: 8080
Does the localhost - - [12/Sep/2010 14:30:03] "GET / HTTP/1.1" 200 -
localhost - - [12/Sep/2010 14:30:03] "GET /coach.css HTTP/1.1" 200 -
web server’s localhost - - [12/Sep/2010 14:30:03] "GET /images/coach-head.jpg HTTP/1.1" 200 -
logging localhost - - [12/Sep/2010 14:30:03] "GET /favicon.ico HTTP/1.1" 200 -
information localhost - - [12/Sep/2010 14:45:16] "GET /cgi-bin/generate_list.py HTTP/1.1" 200 -
localhost - - [12/Sep/2010 16:12:27] “GET /cgi-bin/generate_list.py HTTP/1.1” 200 -
tell you localhost - - [12/Sep/2010 16:12:29] “POST /cgi-bin/generate_timing_data.py HTTP/1.1” 200 -
anything? Traceback (most recent call last):
File “/Users/barryp/HeadFirstPython/chapter7/cgi-bin/generate_timing_data.py”, line 21, in <module>
print(yate.u_list(athletes[athlete_name].top3()))
TypeError: ‘list’ object is not callable
localhost - - [12/Sep/2010 16:12:29] CGI script exit status 0x100

Your CGI has suffered from a TypeError exception, but other than looking at the web
server’s logging screen, it’s not clear on the web browser screen that anything has gone wrong.

What do you think is the problem here? Take a moment
to study the error message before flipping the page.

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