No element found/expecting value when trying to scrape site with into XML and json respectively

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XML

Python

JSON

webscraping

I've been trying to parse a website for a while but I keep getting errors while trying to do so. When I try to use XML I'm getting this:

>>>xml.etree.ElementTree.ParseError: no element found: line 1, column

When I try to use json I'm getting this:

>>>json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

What I have tried:

#My code for xml is:

    import urllib.request, urllib.parse, urllib.error
    import ssl
    import xml.etree.ElementTree as PT
    
    ctx = ssl.create_default_context()
    ctx.check_hostname = False
    ctx.verify_mode = ssl.CERT_NONE
    
    while True:
    
     url= input('Enter Location: ')
     print('Retrieving', url)
    
     uh = urllib.request.urlopen(url, context=ctx)
     data = uh.read()
     print('Retrieved', len(data), 'characters')
    
     tree=PT.fromstring (uh.read())
    
     print (tree)
     break

#My code for json is:

    <pre lang="Python">
    import urllib.request, urllib.parse, urllib.error
    import ssl
    import json
    import requests
    
    ctx = ssl.create_default_context()
    ctx.check_hostname = False
    ctx.verify_mode = ssl.CERT_NONE
    
    while True:
    
     url= input('Enter Location: ')
     print('Retrieving', url)
    
     r = requests.get(url, auth=('user', 'pass'))
    
     m=r.json()
    
     print (m)
     break