Remove Trailing Newline from the Elements of a String List

Remove trailing newline from the elements of a string list

You can either use a list comprehension

my_list = ['this\n', 'is\n', 'a\n', 'list\n', 'of\n', 'words\n']
stripped = [s.strip() for s in my_list]

or alternatively use map():

stripped = list(map(str.strip, my_list))

In Python 2, map() directly returned a list, so you didn't need the call to list. In Python 3, the list comprehension is more concise and generally considered more idiomatic.

How to remove \n from a list element?

If you want to remove \n from the last element only, use this:

t[-1] = t[-1].strip()

If you want to remove \n from all the elements, use this:

t = map(lambda s: s.strip(), t)

You might also consider removing \n before splitting the line:

line = line.strip()
# split line...

Remove newline characters from a list

You can use str.strip() to remove leading and trailing whitespace from a string. To apply it to each item in the list you can use a list comprehension:

lst = [item.strip() for item in lst]

or the map() function:

lst = list(map(str.strip, lst))

As a side note, don't name your variable list as it would shadow the built-in function.

Remove white spaces from the beginning of each string in a list

Use str.lstrip in a list comprehension:

my_list = [' a', ' b', ' c']

my_list = [i.lstrip() for i in my_list]
print(my_list)  # ['a', 'b', 'c']

Remove \r from list

You can use str.strip. '\r' is a carriage return, and strip removes leading and trailing whitespace and new line characters.

>>> l = ['\r1/19/2015', '1/25/2015\r']
>>> l = [i.strip() for i in l]
>>> l
['1/19/2015', '1/25/2015']

How to remove newline from end and beginning of every list element [python]

You can do that by stripping "\n" as follow

a = "\nhello\n"
stripped_a = a.strip("\n")

so, what you need to do is iterate through the list and then apply the strip on the string as shown below

res_1=[]
for i in res:
    tmp=[]
    for j in i:
        tmp.append(j.strip("\n"))
    res_1.append(tmp)

The above answer just removes \n from start and end. if you want to remove all the new lines in a string, just use .replace('\n"," ") as shown below

res_1=[]
for i in res:
    tmp=[]
    for j in i:
        tmp.append(j.replace("\n"))
    res_1.append(tmp)

strip() & rstrip() not removing newline from elements in list

You can remove newlines with i.replace('\n', '')

Remove the newline character in a list read from a file

str.strip() returns a string with leading+trailing whitespace removed, .lstrip and .rstrip for only leading and trailing respectively.

grades.append(lists[i].rstrip('\n').split(','))

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