# python

> Common Python errors with diagnosis and solutions.

- Source: https://doutorai.pt/en/components/skills__python
- Type: Skills
- Category: Development
- Downloads: 0
- Site: Doutor AI (https://doutorai.pt/en) - AI tools for small businesses

An open-source community component, curated and adapted by Doutor AI.

## What it does and how to use it

A **skill** that teaches Claude Code to do development tasks well. It is packaged knowledge the model uses whenever it is relevant.

1. Install the skill (command above).
2. In Claude Code, describe what you need - the skill turns on by itself when the context fits.
3. No commands to memorize: you talk in plain language and the skill does the rest.

## Install (Claude Code)

```bash
mkdir -p .claude/skills/python && curl -fsSL https://doutorai.pt/data/lib/skills__python.md -o .claude/skills/python/SKILL.md
```

Paste this command into the terminal, in your project folder, and the component installs automatically.

## Content

````
# Python Error Patterns

Common Python errors with diagnosis and solutions.

## Import Errors

### ModuleNotFoundError

```python
ModuleNotFoundError: No module named 'package_name'
```

**Causes**:
1. Package not installed
2. Virtual environment not activated
3. Wrong Python version
4. Typo in module name

**Diagnosis**:
```bash
# Check if package installed
pip show package_name
pip list | grep package

# Check which Python
which python
python --version

# Check if in venv
echo $VIRTUAL_ENV
```

**Solutions**:
```bash
# Install package
pip install package_name

# If using virtual env
source v

- 🔒 Full content on the Pro plan (€7.99/month) -
````

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Content by Doutor AI (https://doutorai.pt/en). When quoting, please cite the source: https://doutorai.pt/en/components/skills__python