A **virtual environment** is a directory with some files in it.

///

/// info

This page will teach you how to use **virtual environments** and how they work.

If you are ready to adopt a **tool that manages everything** for you (including installing Python), try [uv](https://github.com/astral-sh/uv).

///

## Create a Project { #create-a-project }

First, create a directory for your project.

import groovy.transform.ToString

@Immutable @ToString
class AcceptedApiChange {
    String type
    String member
    String acceptation
    List<String> changes

    ApiChange toApiChange() {
        return new ApiChange(type, member, changes ?: [])
    }

$ python ./scripts/docs.py live es

<span style="color: green;">[INFO]</span> Serving on http://127.0.0.1:8008
<span style="color: green;">[INFO]</span> Start watching changes
<span style="color: green;">[INFO]</span> Start detecting changes
```

And even more text

```json
{
    // This is a sample JSON code block
    "greeting": "Hello, world!" // Greeting
}
```

Mermaid diagram

```mermaid

$ python ./scripts/docs.py live es

<span style="color: green;">[INFO]</span> Serving on http://127.0.0.1:8008
<span style="color: green;">[INFO]</span> Start watching changes
<span style="color: green;">[INFO]</span> Start detecting changes
```

And even more text

```json
{
    // This is a sample JSON code block
    "greeting": "Hello, world!" // Greeting
}
```

Диаграма Mermaid

```mermaid

        oldMethods.removeAll(newMethods)

        if (oldMethods.isEmpty()) {
            return null
        }

        List<String> changes = filterChangesToReport(oldClass, oldMethods)
        if (changes.isEmpty()) {
            return null
        }
        return acceptOrReject(c, changes, Violation.error(c, " methods removed in internal super class"))
    }

    private Set<CtMethod> collectAllPublicApiMethods(CtClass c) {

import jcifs.util.Hexdump;

/**
 * SMB1 NT Transaction subcommand for file system change notification.
 *
 * This transaction allows monitoring of file system changes in a directory,
 * such as file creation, modification, deletion, and attribute changes.
 */
public class NtTransNotifyChange extends SmbComNtTransaction {

    int fid;
    private final int completionFilter;
    private final boolean watchTree;

    /**

name: Go Telemetry Proposals
description: Changes to the telemetry upload configuration
title: "x/telemetry/config: proposal title"
labels: ["Telemetry-Proposal"]
projects: ["golang/29"]
body:
- type: textarea
  attributes:
    label: Summary
    description: >
      What change are you proposing to the upload configuration, and why?
      For new upload configuration, which new counters will be collected, what

                    <div class="col-md-12">
                        <div
                                class="card card-outline <c:if test="${crudMode == 1 || crudMode == 2}">card-success</c:if><c:if test="${crudMode == 3}">card-danger</c:if><c:if test="${crudMode == 4}">card-primary</c:if>">
                                <%-- Card Header --%>
                            <div class="card-header">

$ python ./scripts/docs.py live es

<span style="color: green;">[INFO]</span> Serving on http://127.0.0.1:8008
<span style="color: green;">[INFO]</span> Start watching changes
<span style="color: green;">[INFO]</span> Start detecting changes
```

And even more text

```json
{
    // This is a sample JSON code block
    "greeting": "Hello, world!" // Greeting
}
```

Диаграма Mermaid

```mermaid

                    <div class="col-md-12">
                        <div
                                class="card card-outline <c:if test="${crudMode == 1 || crudMode == 2}">card-success</c:if><c:if test="${crudMode == 3}">card-danger</c:if><c:if test="${crudMode == 4}">card-primary</c:if>">
                            <div class="card-header">
                                <h3 class="card-title">