Search a file for a word or exact term. Prints lines before and after the search term. Finds multiple occurances.

FileSearch.py

#!/usr/bin/env -m python
"""
Searches a file enter search term and filename
Range is to give context before and after the search term.
It defaults to eight lines before the word and eight lines after.
USAGE:
from FileSearch import filesearch                
search ="urcrnrlat"
filename = "basemap.help"
filesearch(search,filename,Range=2)

"""
def filesearch(search,filename, Range=8):
    cnt=0
    oldcount = -8
    INDEX = []
    for view in open(filename, "r").readlines():
        cnt=cnt+1
        view=view.replace("\n","")
        if search in view:
            if cnt>oldcount:
                INDEX.append([search,cnt-Range,cnt+Range])
                oldcount=cnt+(Range*2)
    cnt=0
    cnt0=0
    for view in open(filename, "r").readlines():
            cnt=cnt+1
            line=view.replace("\n","")
            for content in INDEX:
                if cnt > int(content[1]) and cnt < int(content[2]):
                    print(cnt,line)
                    if cnt==int(content[2]-1):print("-----------")