How to Remove Spaces from a String in Python

What you’ll build or solve

You’ll remove spaces from Python strings in a way that matches your actual input. .

When this approach works best

Removing spaces works well when you:

• Clean user input before saving it, like a username or coupon code.
• Normalize identifiers, like turning "AB 123 456" into "AB123456" for lookups.
• Prepare values for comparisons, like matching data that differs only in spacing.

Avoid removing spaces when spacing carries meaning, like normal sentences you plan to display, fixed-width text formats, or anything where word boundaries matter.

Prerequisites

• Python installed
• You know what a string is

Step-by-step instructions

1) Remove leading and trailing whitespace

Use .strip() when the problem is extra whitespace at the start or end of a string.

raw="   Podgorica   "
clean=raw.strip()
print(clean)

Left side only

raw="   left padded"
clean=raw.lstrip()
print(clean)

Right side only

raw="right padded   "
clean=raw.rstrip()
print(clean)

What to look for: if results look unchanged, print repr(raw) first. Hidden characters show up as \t (tab) and \n (newline).

s="\tHello\nWorld  "
print(repr(s))

2) Remove all regular space characters

If you want to delete regular space characters (" ") everywhere in the string, use .replace(" ", "").

s="AB 123 456"
no_spaces=s.replace(" ","")
print(no_spaces)

Alternative: split and join on spaces

This also removes normal spaces and can feel easier to read.

s="AB   123   456"
no_spaces="".join(s.split(" "))
print(no_spaces)

What to look for: split(" ") only targets normal spaces. Tabs and newlines remain.

3) Remove all whitespace types (spaces, tabs, newlines)

If input can contain tabs, newlines, or mixed whitespace, use split() with no argument. It splits on any whitespace and removes extra runs automatically.

s="AB\t123\n456"
no_whitespace="".join(s.split())
print(no_whitespace)

Option: use regex for an explicit rule

Use this if you already rely on regex in your project.

importre

s="AB\t123\n456"
no_whitespace=re.sub(r"\s+","",s)
print(no_whitespace)

What to look for: \s matches many whitespace types, not just the normal space.

Examples you can copy

Example 1: Trim a form field before checking it

name="   Mina   "
name=name.strip()

ifnotname:
print("Name is required.")
else:
print(f"Saved name:{name}")

Example 2: Normalize an ID for matching

stored_id="AB123456"
user_input="AB 123 456"

normalized=user_input.replace(" ","")
print(normalized==stored_id)# True

Example 3: Clean a copy-pasted token with line breaks and tabs

token="""
  9f3a  12b7
  00d1\t88aa
"""

token="".join(token.split())
print(token)

Example 4: Remove a non-breaking space from copied text

Sometimes text includes a non-breaking space (\u00A0) that looks like a normal space.

s="AB\u00A0123"
clean=s.replace("\u00A0","")
print(clean)

Example 5: Normalize spacing without deleting all spaces

This keeps the text readable while collapsing runs of whitespace to a single space.

importre

s="Hello     from   Boston"
normalized=re.sub(r"\s+"," ",s).strip()
print(normalized)

Common mistakes and how to fix them

Mistake 1: Using strip() and expecting it to remove spaces in the middle

What you might do:

s="AB 123 456"
print(s.strip())

Why it fails: strip() only removes whitespace at the start and end.

Fix:

print(s.replace(" ",""))

If the input may contain tabs or newlines:

print("".join(s.split()))

Mistake 2: Removing " " but missing tabs, newlines, or non-breaking spaces

What you might do:

s="AB\t123\n456"
print(s.replace(" ",""))

Why it fails: tabs and newlines are different characters.

Fix:

print("".join(s.split()))

For copied text with \u00A0:

s="AB\u00A0123"
print(s.replace("\u00A0",""))

Troubleshooting

If you see AttributeError: 'NoneType' object has no attribute 'strip', check if your value is None before calling string methods.

If your result looks unchanged, print repr(your_string) to reveal \t, \n, or \u00A0.

If comparisons still fail after cleaning, confirm you compare the cleaned value, not the original variable.

If replace(" ", "") misses characters, switch to "".join(s.split()) to remove all whitespace types.

If removing spaces makes text unreadable, use the normalization example to keep single spaces between words.

Quick recap

• Use .strip() to remove whitespace at the start and end.
• Use .replace(" ", "") to remove normal spaces everywhere.
• Use "".join(s.split()) to remove spaces, tabs, and newlines.
• Use repr() when hidden whitespace makes results confusing.
• Use regex normalization when you want readable text with consistent spacing.