click-anno 0.0.1

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# click-anno

use annotation to create click app.

## Compare with click api

### Basic Arguments

``` py
# click
import click

@click.command()
@click.argument('filename')
def touch(filename):
click.echo(filename)

# click_anno
import click
import click_anno

@click.command
def touch(filename):
click.echo(filename)
```

### Variadic Arguments

``` py
# click
import click

@click.command()
@click.argument('src', nargs=-1)
@click.argument('dst', nargs=1)
def copy(src, dst):
for fn in src:
click.echo('move %s to folder %s' % (fn, dst))

# click_anno
import click
import click_anno

@command
def copy(src: tuple, dst):
for fn in src:
click.echo('move %s to folder %s' % (fn, dst))
```

### Basic Value Options

``` py
# click
import click

@click.command()
@click.option('--n', default=1)
def dots(n):
click.echo('.' * n)

# click_anno
import click
import click_anno

@command
def dots(n=1):
click.echo('.' * n)
```

### Required Value Options

``` py
# click
import click

@click.command()
@click.option('--n', required=True, type=int)
def dots(n):
click.echo('.' * n)

# click_anno
import click
import click_anno

@command
def dots(*, n: int):
click.echo('.' * n)
```

### Multi Value Options

``` py
# click
import click

@click.command()
@click.option('--pos', nargs=2, type=float)
def findme(pos):
click.echo('%s / %s' % pos)

# click_anno
from typing import Tuple
import click
import click_anno

@command
def findme(*, pos: Tuple[float, float]):
click.echo('%s / %s' % pos)
```

### Tuples as Multi Value Options

``` py
# click
import click

@click.command()
@click.option('--item', type=(str, int))
def putitem(item):
click.echo('name=%s id=%d' % item)

# click_anno
from typing import Tuple
import click
import click_anno

@command
def putitem(*, item: (str, int)):
click.echo('name=%s id=%d' % item)
```