diff --git a/sources/tech/20181004 Functional programming in Python- Immutable data structures.md b/sources/tech/20181004 Functional programming in Python- Immutable data structures.md
index b831ff726f..e6050d52f9 100644
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+Translating by Ryze-Borgia
 Functional programming in Python: Immutable data structures
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 Immutability can help us better understand our code. Here's how to achieve it without sacrificing performance.