async def draw_live(self):
remaining = 0
while True:
if remaining == 0:
remaining = self.settings.refresh
await self.draw()
self._draw_buffer += 3
else:
erase_lines(3)
remaining -= 1
style_print(f"\nrefreshing in {remaining}", style="cyan")
style_print("press CTRL-C to quit", style="cyan")
await asyncio.sleep(1)
async def draw_live(self):
remaining = 0
try:
while True:
if remaining == 0:
remaining = self.settings.refresh
await self.draw()
self._draw_buffer += 3
else:
erase_lines(3)
remaining -= 1
style_print(f"\nrefreshing in {remaining}", style="cyan")
style_print("press CTRL-C to quit", style="cyan")
sleep(1)
except KeyboardInterrupt:
pass
async def draw(self):
lines = []
await self.stock_store.update()
if self.settings.watchlist:
lines += self.watchlist
if self.settings.positions:
lines.append("")
lines += self.positions
lines.append("")
lines += self.profit_and_loss
lines.append("")
lines += self.balances_str
if self._draw_buffer:
erase_lines(self._draw_buffer)
self._draw_buffer = len(lines)
print("\n".join(lines))
def update(self, step, steps):
""" Manually updates the progress bar
"""
try:
# Python 3.3+ only
width = self.width or os.get_terminal_size().columns
except (AttributeError, OSError):
width = 80
prefix = "%s: " % self.label
format_specifier = "%%0%dd" % len(str(steps))
prefix += "%s/%d%s" % (
format_specifier % step,
steps,
self.chars["left-edge"],
)
suffix = self.chars["right-edge"] + "%03d%%" % (step / steps * 100)
units_total = max(width - len(io.strip_format(prefix + suffix)), 5)
units = units_total * step // steps
line = (prefix + units * self.chars["block"] +
(units_total - units) * " " + suffix)
io.erase_lines()
print("\r%s" % line)
def demo_io_erase_lines():
print("press [ENTER] to erase line")
input("/" * 80)
io.erase_lines()
