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simplify live demo example

This commit is contained in:
Nathan Page 2020-10-31 12:34:29 -04:00
parent 4ac0cb8990
commit e0337f5060
2 changed files with 83 additions and 82 deletions
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1
docs/source/live.rst
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@ -101,7 +101,6 @@ You should set this to something lower than 4 if you know your updates will not
You might want to disable auto-refresh entirely if your updates are not very frequent, which you can do by setting ``auto_refresh=False`` on the constructor. You might want to disable auto-refresh entirely if your updates are not very frequent, which you can do by setting ``auto_refresh=False`` on the constructor.
If you disable auto-refresh you will need to call :meth:`~rich.live.Live.refresh` manually or :meth:`~rich.live.Live.update` with ``refresh=True``. If you disable auto-refresh you will need to call :meth:`~rich.live.Live.refresh` manually or :meth:`~rich.live.Live.update` with ``refresh=True``.
This is
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

164
rich/live.py
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@ -243,103 +243,105 @@ class Live(JupyterMixin, RenderHook):
if __name__ == "__main__": if __name__ == "__main__":
import random import random
import time import time
from itertools import cycle
from typing import Dict, List, Tuple from typing import Dict, List, Tuple
from .console import Console, RenderGroup from .console import Console
from .live import Live from .live import Live
from .panel import Panel from .panel import Panel
from .rule import Rule
from .syntax import Syntax
from .table import Table from .table import Table
from .text import Text from .text import Text
console = Console() console = Console()
def table_example() -> None: syntax = Syntax(
Data = List[List[int]] '''def loop_last(values: Iterable[T]) -> Iterable[Tuple[bool, T]]:
"""Iterate and generate a tuple with a flag for last value."""
iter_values = iter(values)
try:
previous_value = next(iter_values)
except StopIteration:
return
for value in iter_values:
yield False, previous_value
previous_value = value
yield True, previous_value''',
"python",
line_numbers=True,
)
def generate_table(data: Data) -> Table: table = Table("foo", "bar", "baz")
table = Table() table.add_row("1", "2", "3")
for data_row in data:
table.add_row(*[hex(data_cell) for data_cell in data_row])
return table progress_renderables = [
"You can make the terminal shorter and taller to see the live table hide"
"Text may be printed while the progress bars are rendering.",
Panel("In fact, [i]any[/i] renderable will work"),
"Such as [magenta]tables[/]...",
table,
"Pretty printed structures...",
{"type": "example", "text": "Pretty printed"},
"Syntax...",
syntax,
Rule("Give it a try!"),
]
def generate_data() -> Data: examples = cycle(progress_renderables)
return [
[random.randint(0, 20) for _ in range(random.randint(0, 8))]
for _ in range(random.randint(12, 20))
]
with Live(console=console, refresh_per_second=1, transient=True) as live_table: exchanges = [
for _ in range(20): "SGD",
data = generate_data() "MYR",
time.sleep(0.5) "EUR",
console.print("hello") "USD",
live_table.update(generate_table(data)) "AUD",
"JPY",
"CNH",
"HKD",
"CAD",
"INR",
"DKK",
"GBP",
"RUB",
"NZD",
"MXN",
"IDR",
"TWD",
"THB",
"VND",
]
with Live(console=console) as live_table:
exchange_rate_dict: Dict[Tuple[str, str], float] = {}
def panel_example() -> None: for index in range(100):
select_exchange = exchanges[index % len(exchanges)]
with Live(auto_refresh=False) as live_panel: for exchange in exchanges:
for index in range(20): if exchange == select_exchange:
panel = Panel(f"Hello, [red]World! {index}\n" * index, title="Welcome") continue
live_panel.update(panel, refresh=True) time.sleep(0.4)
time.sleep(0.2) if random.randint(0, 10) < 1:
console.log(next(examples))
exchange_rate_dict[(select_exchange, exchange)] = 200 / (
(random.random() * 320) + 1
)
if len(exchange_rate_dict) > len(exchanges) - 1:
exchange_rate_dict.pop(list(exchange_rate_dict.keys())[0])
table = Table(title="Exchange Rates")
def table_example2() -> None: table.add_column("Source Currency")
exchanges = [ table.add_column("Destination Currency")
"SGD", table.add_column("Exchange Rate")
"MYR",
"EUR",
"USD",
"AUD",
"JPY",
"CNH",
"HKD",
"CAD",
"INR",
"DKK",
"GBP",
"RUB",
"NZD",
"MXN",
"IDR",
"TWD",
"THB",
"VND",
]
with Live(console=console) as live_table:
exchange_rate_dict: Dict[Tuple[str, str], float] = {}
for index in range(100): for ((soure, dest), exchange_rate) in exchange_rate_dict.items():
select_exchange = exchanges[index % len(exchanges)] table.add_row(
time.sleep(0.1) soure,
console.log("can still log") dest,
for exchange in exchanges: Text(
if exchange == select_exchange: f"{exchange_rate:.4f}",
continue style="red" if exchange_rate < 1.0 else "green",
),
exchange_rate_dict[(select_exchange, exchange)] = 20 / (
(random.random() * 40) + 1
) )
if len(exchange_rate_dict) > len(exchanges) - 1:
exchange_rate_dict.pop(list(exchange_rate_dict.keys())[0])
table = Table(title="Exchange Rates")
table.add_column("Source Currency") live_table.update(table)
table.add_column("Destination Currency")
table.add_column("Exchange Rate")
for ((soure, dest), exchange_rate) in exchange_rate_dict.items():
table.add_row(
soure,
dest,
Text(
f"{exchange_rate:.4f}",
style="red" if exchange_rate < 1.0 else "green",
),
)
live_table.update(table)
table_example()
table_example2()
panel_example()