Python String translate() Method
Example
Replace any "S" characters with a "P" character:
#use a dictionary with ascii codes to replace 83 (S) with 80 (P):
mydict
= {83: 80}
txt = "Hello Sam!"
print(txt.translate(mydict))
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Definition and Usage
The translate() method returns a string
where some specified characters are replaced with the character described in a dictionary,
or in a mapping table.
Use the
maketrans() method to create a mapping table.
If a character is not specified in the dictionary/table, the character will not be replaced.
If you use a dictionary, you must use ascii codes instead of characters.
Syntax
string.translate(table)
Parameter Values
| Parameter | Description |
|---|---|
| table | Required. Either a dictionary, or a mapping table describing how to perform the replace |
More Examples
Example
Use a mapping table to replace "S" with "P":
txt = "Hello Sam!"
mytable = txt.maketrans("S", "P")
print(txt.translate(mytable))
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Example
Use a mapping table to replace many characters:
txt = "Hi Sam!"
x = "mSa"
y = "eJo"
mytable = txt.maketrans(x,
y)
print(txt.translate(mytable))
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Example
The third parameter in the mapping table describes characters that you want to remove from the string:
txt = "Good night Sam!"
x = "mSa"
y = "eJo"
z = "odnght"
mytable = txt.maketrans(x, y, z)
print(txt.translate(mytable))
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Example
The same example as above, but using a dictionary instead of a mapping table:
txt = "Good night Sam!"
mydict = {109: 101, 83: 74, 97: 111, 111: None,
100: None, 110: None, 103: None, 104: None, 116: None}
print(txt.translate(mydict))
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