def lazy_keys(dikt):
"""Return lazy-evaluated string representation of a dictionary's keys
Key list is only constructed if it will actually be used.
Used for debug-logging.
"""
return LazyEvaluate(lambda d: list(d.keys()))
def test_lazy_eval_nonascii_bytes(self):
u = 'ünicødé'
b = u.encode('utf8')
lz = LazyEvaluate(lambda: b)
# unicode(lz) would fail
self.assertEqual(str(lz), str(b))
self.assertEqual(format(lz), str(b))
def test_lazy_eval_float(self):
f = 0.503
lz = LazyEvaluate(lambda: f)
self.assertEqual(str(lz), str(f))
self.assertEqual(format(lz), str(f))
self.assertEqual(format(lz, '.1'), '0.5')
def IPythonColorPrompt(shell):
from IPython.core.prompts import LazyEvaluate
shell.prompt_manager.in_template = 'In [\\#] {burst}'
shell.prompt_manager.in2_template = ' .\\D. {burst}'
shell.prompt_manager.out_template = 'Out[\\#] {burst}'
shell.prompt_manager.lazy_evaluate_fields = {
'burst': LazyEvaluate(ColorPrompt().__str__)
}
def configure_prompt(ipydb):
from IPython.core.prompts import LazyEvaluate
global _backup_prompt1
ip = ipydb.shell
ip.prompt_manager.lazy_evaluate_fields['_ipydb'] = LazyEvaluate(
ipydb.get_db_ps1)
ip.prompt_manager.lazy_evaluate_fields['_reflecting'] = LazyEvaluate(
ipydb.get_reflecting_ps1)
ip.prompt_manager.lazy_evaluate_fields['_tx'] = LazyEvaluate(
ipydb.get_transaction_ps1)
tmpl = ip.prompt_manager.in_template
_backup_prompt1 = tmpl
tmpl = tmpl.rstrip(': ')
tmpl += '{color.LightPurple}{_reflecting}' \
'{color.Cyan}{_ipydb}' \
'{color.LightRed}{_tx}' \
'{color.Green}: '
ip.prompt_manager.in_template = tmpl
def test_lazy_eval_unicode(self):
u = 'ünicødé'
lz = LazyEvaluate(lambda: u)
# str(lz) would fail
self.assertEqual(str(lz), u)
self.assertEqual(format(lz), u)
def test_lazy_eval_unicode(self):
u = u"ünicødé"
lz = LazyEvaluate(lambda: u)
self.assertEqual(str(lz), u)
self.assertEqual(format(lz), u)