passwords: you can’t do it right

#!/usr/bin/python
#
# password_stats_03.py
 
import re
import sys
 
if (len(sys.argv) != 2):
	print """
	password stats 0.03
	usage: password_stats_03.py
	"""
	exit()
 
# assign arguments to variable
file_passwords_all = sys.argv[1] 
 
# create empty vars
passwords_all = 0
passwords_unique = 0
password_numeric = 0
password_alpha_lower = 0
password_alpha_upper = 0
password_alpha_mixed = 0
password_alpha_lower_numeric = 0
password_alpha_upper_numeric = 0
password_alpha_mixed_numeric = 0
password_everything_else = 0
 
# create empty list(s)
list_password_length = []
 
# create empty dictionary(s)
dict_password_count = {}
 
# save all passwords to a list
file_passwords_all = open(file_passwords_all, 'r')
list_passwords_all = []
 
for line in file_passwords_all:
	list_passwords_all.append(line)
	passwords_all += 1
	password_length = len(line)
	list_password_length.append(password_length)
	if re.search("^[0-9]+$", line):
		password_numeric += 1
	elif re.search("^[a-z]+$", line):
		password_alpha_lower += 1
	elif re.search("^[A-Z]+$", line):
		password_alpha_upper += 1
	elif re.search("^[a-zA-Z]+$", line):
		password_alpha_mixed += 1
	elif re.search("^[a-z0-9]+$", line):
		password_alpha_lower_numeric += 1
	elif re.search("^[A-Z0-9]+$", line):
		password_alpha_upper_numeric += 1
	elif re.search("^[a-zA-Z0-9]+$", line):
		password_alpha_mixed_numeric += 1
	else:
		password_everything_else += 1
 
file_passwords_all.close()
 
# save unique passwords to a list
list_passwords_unique = set(list_passwords_all)
 
# put unique passwords and the number of times seen in a dictionary
for item in list_passwords_unique:
	dict_password_count[item] = list_passwords_all.count(item)
	passwords_unique += 1
 
# calculate how many unique passwords there are
passwords_unique_percent = (float(passwords_unique)/float(passwords_all)) * 100
 
# display total and unique passwords
print
print 'all passwords\t\t= ' + str(passwords_all)
print 'unique passwords\t= ' + str(passwords_unique) + "\t\t%% %.02f" % passwords_unique_percent
print
 
# print out password lengths and number of times seen
print 'password length(s): '
for number in range(31):
	password_item = number + 1
	password_length_total = list_password_length.count(password_item)
	length_percentage = (float(password_length_total)/float(passwords_all)) * 100
	print str(number) + " char\t =>\t " + str(password_length_total) + "\t\t%% %.02f" % length_percentage
 
# print out complexity of the passwords and number of times seen with percentages
dict_password_complexity_options = {password_numeric: 'all numeric          ', password_alpha_lower: 'all alpha lower', password_alpha_upper: 'all alpha upper', password_alpha_mixed: 'all alpha mixed', password_alpha_lower_numeric: 'alpha lower & numeric', password_alpha_upper_numeric: 'alpha upper & numeric', password_alpha_mixed_numeric: 'alpha mixed & numeric', password_everything_else: 'everything else'}
 
print
print "password complexity: "
for item, description in dict_password_complexity_options.iteritems():
	print "%s \t\t " % description + str(item) + "\t%% %.02f" % ((float(item)/float(passwords_all)) * 100)
sum = password_numeric + password_alpha_lower + password_alpha_upper + password_alpha_mixed + password_alpha_lower_numeric + password_alpha_upper_numeric + password_alpha_mixed_numeric + password_everything_else
print "sum\t\t\t\t " + str(sum)
print
 
# print out the ten most common passwords with number of times seen
print "most common passwords:"
counter = 9
for key,value in sorted(dict_password_count.iteritems(), key=lambda item: -item[1]):
        if counter > 0:
		if len(key) < 6:
			print "password: " + str(key).strip() + "\t\t\tcount: " + str(value).strip()
		else:
			print "password: " + str(key).strip() + "\t\tcount: " + str(value).strip()
            	counter-=1