---
title: Avoid using inplace=True
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: >-
  Docs > Datadog Security > Code Security > Static Code Analysis (SAST) > SAST
  Rules > Avoid using inplace=True
---

# Avoid using inplace=True

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## Metadata{% #metadata %}

**ID:** `python-pandas/avoid-inplace`

**Language:** Python

**Severity:** Warning

**Category:** Best Practices

## Description{% #description %}

Avoid using `inplace=True` as it does not have clear performance impact and is potentially dangerous and does not behave as it should.

#### Learn More{% #learn-more %}

- [Why You Should Probably Never Use pandas inplace=True](https://towardsdatascience.com/why-you-should-probably-never-use-pandas-inplace-true-9f9f211849e4?gi=ae387a166946)

## Non-Compliant Code Examples{% #non-compliant-code-examples %}

```python
df.drop(['a'], axis=1, inplace=True)
```

## Compliant Code Examples{% #compliant-code-examples %}

```python
df.drop(['a'], axis=1, inplace=False)
```
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