字符串索引超出范围

Question

I am using pandas and pulling information from excel into a list, that part works great and my lists are coming back and I can print them out just fine with no NaN or errors.

However when I go to iterate through them I am encountering an issue with the string index being out of range after the first iteration or when itr is 1 as it prints the first one just fine then errors at the line site = site[itr] .

The site array or list if you will which is comprised of numeric values. I get the count of the number of rows pulled from excel as the index limiter called toSend.

I added site = [str(i) for i in site] because I was getting the error that the int object is not subscriptable.

I'm not sure where I turned left at, any help is very much appreciated.

******* Updated to MRE as requested *******

import smtplib 
from email.mime.multipart import MIMEMultipart 
from email.mime.text import MIMEText 
from email.mime.base import MIMEBase 
from email import encoders 
import pandas as pd
import time
name = ['Michael Jordan', 'General Clark', 'Tony Tiger', 'Alvin Chipmunk', 'Daffy Duck']
eMail = ['thebulls@bull.com', 'general@insurance.com', 'tiger@post.com', 'alvin@chipmunk.com', 'duck@goose.com']
site = [1, 3, 5, 6, 9]
site = [str(i) for i in site]
toSend = 5
print("Count is " + str(toSend))
print("Starting up... Excel Read")
print(name)
print(site)
print(eMail)
time.sleep(2)
itr = 0
for itr in range(toSend):
    print(str(itr))
    name = name[itr]
    eMail = eMail[itr]
    site = site[itr]
    print("\nWe will be sending an email statements to " + str(name) + "\nfor site " + str(site) + "\nat email address "+ str(eMail) + "\n")
    itr = int(itr) + 1
print("Listing Completed")

Answer 1

Updated:

Its because you are overwriting your variables.

So name starts as an array:

name = ['Michael Jordan', 'General Clark', 'Tony Tiger', 'Alvin Chipmunk', 'Daffy Duck']

Loop 1, name becomes a string (idx = 1)

name = 'Michael Jordan'

Loop 2, name becomes a single letter string (idx = 2)

name = 'i'

Loop 2, name tries to get position 3 from a single letter string, therefore string index out of range (idx = 3)

Fixed example:

import smtplib 
from email.mime.multipart import MIMEMultipart 
from email.mime.text import MIMEText 
from email.mime.base import MIMEBase 
from email import encoders 
import pandas as pd
import time
name = ['Michael Jordan', 'General Clark', 'Tony Tiger', 'Alvin Chipmunk', 'Daffy Duck']
eMail = ['thebulls@bull.com', 'general@insurance.com', 'tiger@post.com', 'alvin@chipmunk.com', 'duck@goose.com']
site = [1, 3, 5, 6, 9]
site = [str(i) for i in site]
toSend = 5
print("Count is " + str(toSend))
print("Starting up... Excel Read")
print(name)
print(site)
print(eMail)
time.sleep(2)
itr = 0
for itr in range(toSend):
    print(str(itr))
    loop_name = name[itr]
    loop_eMail = eMail[itr]
    loop_site = site[itr]
    print("\nWe will be sending an email statements to " + str(loop_name) + "\nfor site " + str(loop_site) + "\nat email address "+ str(loop_eMail) + "\n")
print("Listing Completed")

-- Old --

Just modify your code to a for loop, this will reduce the logic needed and make it easier to debug.

name = sI["Name"].values.tolist()
eMail = sI["MailAddress"].values.tolist()
site = sI["MailSite"].values.tolist()
site = [str(i) for i in site]
toSend = sI["Count"].values

print("Count is " + str(toSend))
print("Starting up... Excel Read")
print(name)
print(site)
print(eMail)
time.sleep(2)
itr = 0
for itr in range(len(toSend)):
    print(str(itr))
    name = name[itr]
    eMail = eMail[itr]
    site = site[itr]
    print("We will be sending an email statements to " + str(name) + "\nfor site " + str(site) + "\nat email address "+ str(eMail))