I am a CS major at the University of Alabama, we have a project in our python class and I am stuck...probably for some stupid reason, but I cant seem to find the answer.
here is the link to the project, as it would be a pain to try and explain on here.
http://beastie.cs.ua.edu/cs150/projects/project1.html
here is my code:
import sys
from scanner import scan
def clInput():
#Gets command line input
log1 = sys.argv[1]
log2 = sys.argv[2]
name = sys.argv[3]
if len(sys.argv) != 4:
print('Incorrect number of arguments, should be 3')
sys.exit(1)
return log1,log2,name
def openFiles(log1,log2):
#Opens sys.argv[1]&[2] for reading
f1 = open(log1, 'r')
f2 = open(log2, 'r')
return f1, f2
def merge(log1,log2):
#Merges parsed logs into list without '---'
log1Parse = [[]]
log2Parse = [[]]
log1Count = 0
log2Count = 0
for i in log1:
if i != ['---']:
log1Parse[log1Count].append(i)
else:
log1Count += 1
log1Parse.append([])
for i in log2:
if i != ['---']:
log2Parse[log2Count].append(i)
else:
log2Count += 1
log2Parse.append([])
return(log1Parse[0] + log2Parse[0] + log1Parse[1] + log2Parse[1])
def searchMerge(name,merged):
#Searches Merged list for sys.argv[3]
for i in range(len(merged)):
if (merged[i][1] == name):
print(merged[i][0],merged[i][1]," ".join(merged[i][2:]))
def main():
log1,log2,name = clInput()
f1,f2 = openFiles(log1,log2)
#Sets the contents of the two scanned files to variables
tokens1 = scan(f1)
tokens2 = scan(f2)
#Call to merge and search
merged = merge(tokens1,tokens2)
searchMerge(name,merged)
main()
ok. so heres the problem. We are to merge two lists together into a sorted master list, delimited at the ---'s
my two log files match the ones posted on the website i linked to above. This code works, however if there are more than two instances of the ---'s in each list, it will not jump to the next list to get the other tokens, and so forth. I have it working for two with the merge function. at the end of that function i return
return(log1Parse[0] + log2Parse[0] + log1Parse[1] + log2Parse[1])
but this only works for two instances of ---. Is there anyway i can change my return to look at all of the indexes instead of having to manually put in [0],[1],[2], etc.? I need it to delimit and merge for an arbitrary amount. Please help!!
p.s. disregard the noobness...im a novice, we all gotta start somewhere
p.p.s. - the from scanner import scan is a scanner i wrote to take in all of the tokens in a given list
so.py:
import sys
def main():
# check and load command line arguments
# your code
if len(sys.argv) != 4:
print('Incorrect number of arguments, should be 3')
sys.exit(1)
# open files using file io
# your code
f1 = open(log1, 'r')
f2 = open(log2, 'r')
# list comprehension to process and filter log files
l1 = [ x.strip().split(" ",2) for x in f1.readlines() if x.strip() != "---" ]
l2 = [ x.strip().split(" ",2) for x in f2.readlines() if x.strip() != "---" ]
f1.close()
f2.close()
sorted_merged_lists = sorted(l1 + l2)
results = [ x for x in sorted_merged_lists if x[1] == name ]
for result in results:
print result
main()
CLI:
$ python so.py log1.txt log2.txt Matt
['12:06:12', 'Matt', 'Logged In']
['13:30:07', 'Matt', 'Opened Terminal']
['15:02:00', 'Matt', 'Opened Evolution']
['15:31:16', 'Matt', 'Logged Out']
docs:
http://docs.python.org/release/3.0.1/tutorial/datastructures.html#list-comprehensions
http://docs.python.org/release/3.0.1/library/stdtypes.html?highlight=strip#str.strip
http://docs.python.org/release/3.0.1/library/stdtypes.html?highlight=split#str.split
http://docs.python.org/release/3.0.1/library/functions.html?highlight=sorted#sorted