Python the last for loop in my code is always ignored

Question

I have a handful of for loops currently to test various things, and for some reason whatever for loop is the last one in the code, it is always ignored. I can rearrange the loops however I like, but the last loop is always ignored. And I have no idea why. There are two more loops before the code snippet but they are what create docsplit.

docsplit is a list of words taken from a document:

for word in docsplit:
    if "http" in word or "HTTP" in word or "Http" in word:
        #if it isn't already in the list
        docsplit.remove(word)

for word in docsplit:
    if "@" in word:
        docsplit.remove(word)


for word in docsplit:
    if "+1" in word:
        docsplit.remove(word)
    #find any websites in docsplit

#remove any strings that have a regex like XXX-XXXX or XXX-XXXX-XXXX
for word in docsplit:
    if re.search(r'\d{3}-\d{4}', word):
        docsplit.remove(word)

#remove any strings that have a regex like (XXX)
for word in docsplit:
    if re.search(r"\(\d{3}\)", word):
        docsplit.remove(word)

Answer 1

Use list comprehension , instead of changing the list while iterating over it (which is a bad practice):

import re
docsplit = ['http', '123-4567', 'foo']

docsplit = [word for word in docsplit if
            not ("http" in word or "HTTP" in word or "Http" in word)
            and not "@" in word
            and not "+1" in word
            and not re.search(r'\d{3}-\d{4}', word)
            and not re.search(r"\(\d{3}\)", word)
            ]

print(docsplit)
# ['foo']