+- Python Forum (https://python-forum.io)
+-- Forum: Python Coding (https://python-forum.io/forum-7.html)
+--- Forum: General Coding Help (https://python-forum.io/forum-8.html)
+--- Thread: reading txt file putting in list function (/thread-19857.html)
reading txt file putting in list function - Expel - Jul-17-2019
Having issues putting numbers from text file into a list and then calling that list to sum / avg numbers.
trying to do it without importing, though i found a way to do it with "Import RE"
with open('nums.txt') as f:
fdata=f.read()
print(fdata)
myList = []
for A in fdata:
myList.append(int(A))
print("Total =", sum(myList))
def Average(myList):
return sum(myList) / len (myList)
print("Average =", round(Average(myList), 2))
RE: reading txt file putting in list function - ichabod801 - Jul-17-2019
It's going to depend a lot on your file format. Note that fdata is a string, so
for A in fdata: will loop over the individual characters of the string. You would normally use the split method of the string to make a list of the values separated by a delimiter. Then you could read complete numbers, not just the digits.
RE: reading txt file putting in list function - Expel - Jul-17-2019
(Jul-17-2019, 01:56 PM)ichabod801 Wrote: It's going to depend a lot on your file format. Note that fdata is a string, so for A in fdata: will loop over the individual characters of the string. You would normally use the split method of the string to make a list of the values separated by a delimiter. Then you could read complete numbers, not just the digits.so i should
str.split(separator, maxsplit)
for A in fdata:
myList.split(()A))?
RE: reading txt file putting in list function - ichabod801 - Jul-17-2019
Well, again, that depends on the format of your data file. Can you show us a few lines of that file?
RE: reading txt file putting in list function - Expel - Jul-17-2019
(Jul-17-2019, 02:31 PM)ichabod801 Wrote: Well, again, that depends on the format of your data file. Can you show us a few lines of that file?
Its just a random number test.
so it goes straight down
Quote:95
90
89
53
88
100
101
35
72
93
87
63
100
98
75
65
80
92
25
RE: reading txt file putting in list function - perfringo - Jul-17-2019
I observe that this is second thread on same topic.
There is no information about file format available but my random guess is:
with open(“nums.txt”, “r”) as f:
numbers = [int(num) for num in f.read().split()]
RE: reading txt file putting in list function - ichabod801 - Jul-17-2019
Okay, then you just need to split by lines. The code perfringo posted is one way to do that. Another way, is to just loop over the file:
with open('nums.txt') as nums_file:
numbers = []
for line in nums_file:
numbers.append(int(line))Or you can do a list comprehension like perfringo did.
RE: reading txt file putting in list function - Expel - Jul-17-2019
(Jul-17-2019, 02:41 PM)perfringo Wrote: I observe that this is second thread on same topic.
There is no information about file format available but my random guess is:
with open(“nums.txt”, “r”) as f: numbers = [int(num) for num in f.read().split()]
Sry changed the question from the other, ill be moving back to that topic soon about the IOERRORS.
(Jul-17-2019, 02:54 PM)ichabod801 Wrote: Okay, then you just need to split by lines. The code perfringo posted is one way to do that. Another way, is to just loop over the file:Works perfectly
with open('nums.txt') as nums_file: numbers = [] for line in nums_file: numbers.append(int(line))Or you can do a list comprehension like perfringo did.
with open('nums.txt') as nums_file:
numbers = []
for line in nums_file:
numbers.append(int(line))
print("Total =", sum(numbers))
def Average(numbers):
return sum(numbers) / len (numbers)
print("Average =", round(Average(numbers), 2))