### Install pybase64

Source: https://github.com/mayeut/pybase64/blob/master/docs/intro.md

Install pybase64 using pip. This command installs the package and its dependencies.

```bash
pip install pybase64
```

--------------------------------

### pybase64 Command-Line Tool Usage

Source: https://github.com/mayeut/pybase64/blob/master/README.rst

Shows the basic usage and available subcommands for the pybase64 command-line interface.

```bash
usage: pybase64 [-h] [-V] {benchmark,encode,decode} ...

pybase64 command-line tool.

positional arguments:
  {benchmark,encode,decode}
                        tool help
    benchmark           -h for usage
    encode              -h for usage
    decode              -h for usage

optional arguments:
  -h, --help            show this help message and exit
  -V, --version         show program's version number and exit
```

--------------------------------

### pybase64 Command-Line Tool Usage

Source: https://github.com/mayeut/pybase64/blob/master/docs/intro.md

Shows the usage of the pybase64 command-line tool, including its subcommands for benchmark, encode, and decode.

```none
usage: pybase64 [-h] [-V] {benchmark,encode,decode} ...

pybase64 command-line tool.

positional arguments:
  {benchmark,encode,decode}
                        tool help
    benchmark           -h for usage
    encode              -h for usage
    decode              -h for usage

optional arguments:
  -h, --help            show this help message and exit
  -V, --version         show program's version number and exit
```

--------------------------------

### Encode and Decode with pybase64

Source: https://github.com/mayeut/pybase64/blob/master/README.rst

Demonstrates base64 encoding and decoding using pybase64, including custom altchars and validation options. Also shows standard and URL-safe variants.

```python
import pybase64

print(pybase64.b64encode(b'>>>foo???', altchars='_:'))
# b'Pj4_Zm9vPz8:'
print(pybase64.b64decode(b'Pj4_Zm9vPz8:', altchars='_:', validate=True))
# b'>>>foo???'

# Standard encoding helpers
print(pybase64.standard_b64encode(b'>>>foo???'))
# b'Pj4+Zm9vPz8/'
print(pybase64.standard_b64decode(b'Pj4+Zm9vPz8/'))
# b'>>>foo???'

# URL safe encoding helpers
print(pybase64.urlsafe_b64encode(b'>>>foo???'))
# b'Pj4-Zm9vPz8_'
print(pybase64.urlsafe_b64decode(b'Pj4-Zm9vPz8_'))
# b'>>>foo???'
```

--------------------------------

### Encode and Decode with pybase64

Source: https://github.com/mayeut/pybase64/blob/master/docs/intro.md

Demonstrates base64 encoding and decoding using pybase64's b64encode and b64decode functions. It's recommended to use validate=True for decoding when possible for performance.

```python
import pybase64

print(pybase64.b64encode(b'>>>foo???', altchars='_:'))
# b'Pj4_Zm9vPz8:'
print(pybase64.b64decode(b'Pj4_Zm9vPz8:', altchars='_:', validate=True))
# b'>>>foo???'
```

```python
# Standard encoding helpers
print(pybase64.standard_b64encode(b'>>>foo???'))
# b'Pj4+Zm9vPz8/'
print(pybase64.standard_b64decode(b'Pj4+Zm9vPz8/'))
# b'>>>foo???'
```

```python
# URL safe encoding helpers
print(pybase64.urlsafe_b64encode(b'>>>foo???'))
# b'Pj4-Zm9vPz8_'
print(pybase64.urlsafe_b64decode(b'Pj4-Zm9vPz8_'))
# b'>>>foo???'
```

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