a_file = open('file.txt')
string = 'a word'
flag = 0
index = 0
for line in a_file:
index += 1
if string in line:
break
index -= 1
lines_to_read = [index]
for position, line in enumerate(a_file):
if position in lines_to_read:
file = line
print(line)
I found the line where 'a word' is located, and I want to get those line into a variable
but it only reads the first line of the text file
how can I fix it
@Maicon has it, though in python you don't even need the global variable, you can create and set desired_line
in the if
statement and its namespace will extend to the entire function containing the if
statement:
a_file = open('file.txt')
string = 'a word'
for line in a_file:
if string in line:
desired_line = line
break
print(desired_line)
a_file.close()
What you can do is check for string in the line. This will do for you.
a_file = open('all.txt')
string = 'a word'
flag = 0
index = 0
for position, line in enumerate(a_file):
if string in line: #=== if 'a word' in line
file = line
pos=position+1
break
print(file,"Line Number: ",pos)
However if more number of the same words are there, you can use a dict
to get the line numbers and the value.
a_file = open('all.txt')
string = 'f'
dictionary={}
flag = 0
index = 0
for position, line in enumerate(a_file):
if string in line:
file = line
pos=position
dictionary.update({pos+1:[file.strip("\n").strip(),file.count(string)]})
if dictionary!={}:
print("\n------- Statistics --------\n")
print("Total Items found: ",len(dictionary),"\nTotal Occurences: ",sum([dictionary.get(x)[1] for x in dictionary]))) #=== Get the sum of all numbers
for key, value in dictionary.items():
print("-------------------------")
print("Line: "+value[0],"\nNumber of occurrences: ",value[1],"\nLine Number: ",key)
else:
print("Oops. That word was no found. Check you word again.")
You can simply iterate through the lines, and assign the line to a previous created string variable, if the condition is met, that the string occurs in a line of the file:
a_file = open('file.txt')
string = 'a word'
res_line = ""
for line in a_file:
if string in line:
res_line = line
print(res_line)
a_file.close()
you could also create a list which contains every line in that the string occurs:
a_file = open('file.txt')
string = 'a word'
res = [line for line in a_file if string in line]
print(res)
a_file.close()
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