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Reduce printing in tight loops #85

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Reduce printing in tight loops #85

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77e4022
Add deltatime between prints to avoid wasting too much time printin i…
Jul 20, 2020
91b0e07
Fix tests.
Jul 20, 2020
71f626f
Merge branch 'master' into master
lavrentivs Jul 20, 2020
46920a5
Follow code conventions.
lavrentivs Jul 20, 2020
9a4f825
Force writeln on finish.
lavrentivs Jul 20, 2020
0eb15ea
prev_line should be hidden
lavrentivs Jul 20, 2020
6084bba
Update prev_line in writeln
lavrentivs Jul 20, 2020
e43bf7d
Fix prev_line update
lavrentivs Jul 20, 2020
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10 changes: 10 additions & 0 deletions progress/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,8 @@ class Infinite(object):

def __init__(self, message='', **kwargs):
self.index = 0
self.print_dt = .5
self._prev_line = ''
self.start_ts = monotonic()
self.avg = 0
self._avg_update_ts = self.start_ts
Expand All @@ -49,6 +51,7 @@ def __init__(self, message='', **kwargs):
self._max_width = 0
self._hidden_cursor = False
self.message = message
self._prev_write = self.start_ts - self.print_dt * 2

if self.file and self.is_tty():
if self.hide_cursor:
Expand Down Expand Up @@ -91,6 +94,11 @@ def start(self):
pass

def writeln(self, line):
now = monotonic()
self._prev_line = line
if now - self._prev_write < self.print_dt:
return
self._prev_write = now
if self.file and self.is_tty():
width = len(line)
if width < self._max_width:
Expand All @@ -102,6 +110,8 @@ def writeln(self, line):
self.file.flush()

def finish(self):
self._prev_write = monotonic() - self.print_dt * 2
self.writeln(self._prev_line)
if self.file and self.is_tty():
print(file=self.file)
if self._hidden_cursor:
Expand Down