# coding=utf-8

def search_keyword_index(s):

key_word = ['and', 'as', 'assert', 'async', 'await', 'break', 'class', 'continue', 'def', 'del', 'elif', 'else',

'except', 'False', 'finally', 'for', 'from', 'global', 'if', 'import', 'in', 'is', 'lambda', 'None',

'nonlocal', 'not', 'or', 'pass', 'raise', 'return', 'True', 'try', 'with', 'while', 'yield']

index_list = []

for word in key_word:

index_beg = 0

while word in s[index_beg:]:

word_begin_index = s.index(word, index_beg, len(s))

index_list += [i for i in range(word_begin_index, word_begin_index+len(word))]

index_beg = word_begin_index + len(word)

index_list.sort()

return index_list

file_read = open('pdf.py', 'r')

s_read = file_read.read()

file_read.close()

file_write = open('pdf_write.py', 'w')

s_write = ''

for index in range(len(s_read)): # 两种方法和下面的一样

if ('a' <= s_read[index] <= 'z') and (index not in search_keyword_index(s_read)):

s_write += s_read[index].upper()

else:

s_write += s_read[index]

# 两种方法和上面的一样

# for index in range(len(s_read)):

# if ('a' <= s_read[index] <= 'z') and (index not in search_keyword_index(s_read)):

# s_read = s_read[:index] + s_read[index].upper() + s_read[(index + 1):]

print(s_write)

file_write.write(s_write)

file_write.close()