Web Page To Pdf Coverter in Python using API

# Web page to pdf converter
# local web page to pdf converter
# python application using pdfcrowd module: 'pip install pdfcrowd'
# API-application programming interface

"""IMPORTANT THING - SAVE AS .pdf file"""

import pdfcrowd
import sys
import os

API_NAME= 'demo'
API_KEY= "ce544b6ea52a5621fb9d55f8b542d14d"

#convert web to pdf
def convertWebToPdf(url,filename):
    #filename = converted file name, extension as .pdf
    try:
        api_client = pdfcrowd.HtmlToPdfClient(API_NAME, API_KEY)
        api_client.convertUrlToFile(url, filename)

    except pdfcrowd.Error as why:
        #report the Error

        sys.stderr.write("PdfCrowd Error: {}\n".format(why))

#covert local html file to pdf
def convertHTMLtoPdf(localHTML,filename):
    #localHTML = local html web page path
    #filename = converted file name, extension as .pdf
    try:
        api_client = pdfcrowd.HtmlToPdfClient(API_NAME, API_KEY)
        api_client.convertFileToFile(localHTML, filename)

    except pdfcrowd.Error as why:
        #report the Error
        sys.stderr.write("PdfCrowd Error: {}\n".format(why))

run = True
while run:
    print("Welcom to PdfCrowd Converter")
    print("=============================")
    print("Press i to convert web to pdf")
    print("Press h to convert local html page to pdf")
    print("Press q to quit")
    option=input('>')

    if option == "i":
        url_address=input("Enter url:")
        file_name=input("Save as:")
        if 'pdf' in file_name:
            convertWebToPdf(url_address,file_name)
            print("Success !")
            print()
        else:
            print("wrong extension")
            continue
    elif option == "h":
        localfile=input("Path of Html:")
        file_name=input("Save as:")
        if 'pdf' in file_name:
            convertHTMLtoPdf(localfile,file_name)
            print("Success !")
            print()
        else:
            print("wrong extension")
            continue

    elif option=='q':
        run=False

    else:
        print("wrong input")
        print()