# Source: https://docs.datadoghq.com/security/code_security/static_analysis/static_analysis_rules/python-pandas/arith-operator-not-functions.md

---
title: Use arithmetic operator instead of a function
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: >-
  Docs > Datadog Security > Code Security > Static Code Analysis (SAST) > SAST
  Rules > Use arithmetic operator instead of a function
---

# Use arithmetic operator instead of a function

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## Metadata{% #metadata %}

**ID:** `python-pandas/arith-operator-not-functions`

**Language:** Python

**Severity:** Notice

**Category:** Best Practices

## Description{% #description %}

User should use arithmetic operators (`+`, `-`, etc) instead of function (`.add`) to make the code more clear.

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

```python
def myfunction():
    foo = pd.DataFrame({'angles': [0, 3, 4],
                        'degrees': [360, 180, 360]},
                        index=['circle', 'triangle', 'rectangle'])
    if something:
        baz = foo.add(1)
    elif other_thing:
        baz = foo.add(42)
    else:
        baz = foo.add(51)

    bar = whatever()
    baz = bar.add(4)
```

```python
def myfunction():
    foo = pd.DataFrame({'angles': [0, 3, 4],
                        'degrees': [360, 180, 360]},
                        index=['circle', 'triangle', 'rectangle'])
    baz = foo.add(1)

    bar = whatever()
    baz = bar.add(4)
```

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

```python
foo = pd.DataFrame({'angles': [0, 3, 4],
                   'degrees': [360, 180, 360]},
                  index=['circle', 'triangle', 'rectangle'])
baz = foo + 1
```
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