Python program execution results are not displayed in IDLE

I'm sorry if it's already been passed.

Q: Could you tell me how to view the results of IDLE execution?
Environment: python 2.7.10 (Mac OS high Sierra 10.13.2)
What you want to do:

I want to run the following source code from IDLE to see the output

#!/usr/bin/env python
# coding —utf-8

import urllib.request
from xml.etree.ElementTree import ElementTree

defmain(url):
    xmlfile=urllib.request.urlopen(url)
    tree=ElementTree(file=xmlfile)
    root=tree.getroot()
    for node in root.getchildren():
        if node.tag=="{http://webservices.amazon.com/AWSECommerceService/2005-10-05}Items":
            for subnode in node.getchildren():
                if subnode.tag=="{http://webservices.amazon.com/AWSECommerceService/2005-10-05}TotalResults":
                    print(subnode.text)
                elif subnode.tag=="{http://webservices.amazon.com/AWSECommerceService/2005-10-05}Item":
                    for item in subnode:
                        if item.tag=="{http://webservices.amazon.com/AWSECommerceService/2005-10-05} ASIN":
                            print(item.text)

if__name__=="__main__":
    amazon_api_url="http://ecs.amazonaws.jp/onca/xml?Service=AWSECommerceService&Operation=ItemSearch&"
    AWSAcessKeyId="XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
    Keywords="Python"
    url=amazon_api_url+"AWSAccessKeyId="+AWSAccessKeyId+"&SearchIndex=Books&Keywords="+Keywords
    main(url)

What you did:
①Enter IDLE at Terminal

IDSelect to open the file to start IDLE

③Select amazon.py (source code above)
(Access Key ID is hidden)

RSelect Run→Runmodule

If you do the above, after IDLE says Restart, you leave with no results.
It's coming.

"I am referring to Sho Young's ""Learning Python Introductory Class in 10 Days"" with the expected results and
" It's different.

I think it's some kind of elementary misconfiguration, but if there's someone who's into it,
Please let me know.

python

2022-09-30 20:21

1 Answers

It's a program that only appears when the if statement meets the conditions (print statement is not executed), so you don't know what's going on.

If you print the data to be conditioned before the if statement, you can guess where the problem is.For example, try rewriting the main as shown in the example below.

defmain(url):
xmlfile=urllib.request.urlopen(url)
tree=ElementTree(file=xmlfile)
root=tree.getroot()
for node in root.getchildren():
    print node
    if node.tag=="{http://webservices.amazon.com/AWSECommerceService/2005-10-05}Items":
        for subnode in node.getchildren():
            print subnode
            if subnode.tag=="{http://webservices.amazon.com/AWSECommerceService/2005-10-05}TotalResults":
                print(subnode.text)
            elif subnode.tag=="{http://webservices.amazon.com/AWSECommerceService/2005-10-05}Item":
                for item in subnode:
                    print item
                    if item.tag=="{http://webservices.amazon.com/AWSECommerceService/2005-10-05} ASIN":
                        print(item.text)

2022-09-30 20:21

If you have any answers or tips

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