def _resolve_capability(self, atom):
"""Return a terminal code for a capname or a sugary name, or an empty
Unicode.
The return value is always Unicode, because otherwise it is clumsy
(especially in Python 3) to concatenate with real (Unicode) strings.
"""
code = tigetstr(self._sugar.get(atom, atom))
if code:
# See the comment in ParametrizingString for why this is latin1.
return code.decode('latin1')
return ''
python类tigetstr()的实例源码
def __call__(self, *args):
try:
# Re-encode the cap, because tparm() takes a bytestring in Python
# 3. However, appear to be a plain Unicode string otherwise so
# concats work.
#
# We use *latin1* encoding so that bytes emitted by tparm are
# encoded to their native value: some terminal kinds, such as
# 'avatar' or 'kermit', emit 8-bit bytes in range 0x7f to 0xff.
# latin1 leaves these values unmodified in their conversion to
# unicode byte values. The terminal emulator will "catch" and
# handle these values, even if emitting utf8-encoded text, where
# these bytes would otherwise be illegal utf8 start bytes.
parametrized = tparm(self.encode('latin1'), *args).decode('latin1')
return (parametrized if self._normal is None else
FormattingString(parametrized, self._normal))
except curses.error:
# Catch "must call (at least) setupterm() first" errors, as when
# running simply `nosetests` (without progressive) on nose-
# progressive. Perhaps the terminal has gone away between calling
# tigetstr and calling tparm.
return ''
except TypeError:
# If the first non-int (i.e. incorrect) arg was a string, suggest
# something intelligent:
if len(args) == 1 and isinstance(args[0], str):
raise TypeError(
'A native or nonexistent capability template received '
'%r when it was expecting ints. You probably misspelled a '
'formatting call like bright_red_on_white(...).' % args)
else:
# Somebody passed a non-string; I don't feel confident
# guessing what they were trying to do.
raise
def unicode_parm(cap, *parms):
"""Return the result of ``tparm(tigetstr())`` except as Unicode."""
return tparm(tigetstr(cap), *parms).decode('latin1')
def _resolve_capability(self, atom):
"""Return a terminal code for a capname or a sugary name, or an empty
Unicode.
The return value is always Unicode, because otherwise it is clumsy
(especially in Python 3) to concatenate with real (Unicode) strings.
"""
code = tigetstr(self._sugar.get(atom, atom))
if code:
# See the comment in ParametrizingString for why this is latin1.
return code.decode('latin1')
return ''
def __call__(self, *args):
try:
# Re-encode the cap, because tparm() takes a bytestring in Python
# 3. However, appear to be a plain Unicode string otherwise so
# concats work.
#
# We use *latin1* encoding so that bytes emitted by tparm are
# encoded to their native value: some terminal kinds, such as
# 'avatar' or 'kermit', emit 8-bit bytes in range 0x7f to 0xff.
# latin1 leaves these values unmodified in their conversion to
# unicode byte values. The terminal emulator will "catch" and
# handle these values, even if emitting utf8-encoded text, where
# these bytes would otherwise be illegal utf8 start bytes.
parametrized = tparm(self.encode('latin1'), *args).decode('latin1')
return (parametrized if self._normal is None else
FormattingString(parametrized, self._normal))
except curses.error:
# Catch "must call (at least) setupterm() first" errors, as when
# running simply `nosetests` (without progressive) on nose-
# progressive. Perhaps the terminal has gone away between calling
# tigetstr and calling tparm.
return ''
except TypeError:
# If the first non-int (i.e. incorrect) arg was a string, suggest
# something intelligent:
if len(args) == 1 and isinstance(args[0], str):
raise TypeError(
'A native or nonexistent capability template received '
'%r when it was expecting ints. You probably misspelled a '
'formatting call like bright_red_on_white(...).' % args)
else:
# Somebody passed a non-string; I don't feel confident
# guessing what they were trying to do.
raise
def __init__(self):
""" Initialization """
dict.__init__(self, {
'NORMAL': '',
'BOLD': '',
'ERASE': '\n',
'RED': '',
'YELLOW': '',
'GREEN': '',
})
try:
import curses as _curses
except ImportError:
# fixup if a submodule of curses failed.
if 'curses' in _sys.modules:
del _sys.modules['curses']
else:
try:
_curses.setupterm()
except (TypeError, _curses.error):
pass
else:
def make_color(color):
""" Make color control string """
seq = _curses.tigetstr('setaf')
if seq is not None:
seq = _curses.tparm(seq, color)
return seq
self['NORMAL'] = _curses.tigetstr('sgr0')
self['BOLD'] = _curses.tigetstr('bold')
erase = _curses.tigetstr('el1')
if erase is not None:
self['ERASE'] = erase + _curses.tigetstr('cr')
self['RED'] = make_color(_curses.COLOR_RED)
self['YELLOW'] = make_color(_curses.COLOR_YELLOW)
self['GREEN'] = make_color(_curses.COLOR_GREEN)
def hide(self):
if self.stream_isatty:
hideseq = '\r' + ' ' * self.hidelen + '\r'
if self.has_terminfo:
hideseq_l = (curses.tigetstr('cr'), curses.tigetstr('clr_eol'))
if all(seq is not None for seq in hideseq_l):
hideseq = ''.join(seq.decode() for seq in hideseq_l)
else:
hideseq = '\n'
self.stream.write(hideseq)
self.stream.flush()
def __init__(self, color=True, *args, **kwargs):
logging.Formatter.__init__(self, *args, **kwargs)
self._color = color and _stderr_supports_color()
if self._color:
# The curses module has some str/bytes confusion in
# python3. Until version 3.2.3, most methods return
# bytes, but only accept strings. In addition, we want to
# output these strings with the logging module, which
# works with unicode strings. The explicit calls to
# unicode() below are harmless in python2 but will do the
# right conversion in python 3.
fg_color = (curses.tigetstr("setaf") or
curses.tigetstr("setf") or "")
if (3, 0) < sys.version_info < (3, 2, 3):
fg_color = unicode_type(fg_color, "ascii")
self._colors = {
logging.DEBUG: unicode_type(curses.tparm(fg_color, 4), # Blue
"ascii"),
logging.INFO: unicode_type(curses.tparm(fg_color, 2), # Green
"ascii"),
logging.WARNING: unicode_type(curses.tparm(fg_color, 3), # Yellow
"ascii"),
logging.ERROR: unicode_type(curses.tparm(fg_color, 1), # Red
"ascii"),
}
self._normal = unicode_type(curses.tigetstr("sgr0"), "ascii")
def terminal_has_colors():
if sys.platform=='cygwin' and 'USE_COLOR' not in os.environ:
# Avoid importing curses that causes illegal operation
# with a message:
# PYTHON2 caused an invalid page fault in
# module CYGNURSES7.DLL as 015f:18bbfc28
# Details: Python 2.3.3 [GCC 3.3.1 (cygming special)]
# ssh to Win32 machine from debian
# curses.version is 2.2
# CYGWIN_98-4.10, release 1.5.7(0.109/3/2))
return 0
if hasattr(sys.stdout, 'isatty') and sys.stdout.isatty():
try:
import curses
curses.setupterm()
if (curses.tigetnum("colors") >= 0
and curses.tigetnum("pairs") >= 0
and ((curses.tigetstr("setf") is not None
and curses.tigetstr("setb") is not None)
or (curses.tigetstr("setaf") is not None
and curses.tigetstr("setab") is not None)
or curses.tigetstr("scp") is not None)):
return 1
except Exception:
pass
return 0
def __init__(self, *args, **kwargs):
logging.Formatter.__init__(self, *args, **kwargs)
self._coloured = COLOURED and _stderr_supports_color()
if self._coloured:
curses.setupterm()
# The curses module has some str/bytes confusion in
# python3. Until version 3.2.3, most methods return
# bytes, but only accept strings. In addition, we want to
# output these strings with the logging module, which
# works with unicode strings. The explicit calls to
# unicode() below are harmless in python2 but will do the
# right conversion in python 3.
fg_color = (curses.tigetstr("setaf") or curses.tigetstr("setf") or
"")
if (3, 0) < sys.version_info < (3, 2, 3):
fg_color = unicode(fg_color, "ascii")
self._colors = {
# blues
logging.DEBUG: unicode(curses.tparm(fg_color, 4), "ascii"),
# green
logging.INFO: unicode(curses.tparm(fg_color, 2), "ascii"),
# yellow
logging.WARNING: unicode(curses.tparm(fg_color, 3), "ascii"),
# red
logging.ERROR: unicode(curses.tparm(fg_color, 1), "ascii")
}
self._normal = unicode(curses.tigetstr("sgr0"), "ascii")
def __init__(self, color=True, fmt=DEFAULT_FORMAT,
datefmt=DEFAULT_DATE_FORMAT, colors=DEFAULT_COLORS):
r"""
:arg bool color: Enables color support.
:arg string fmt: Log message format.
It will be applied to the attributes dict of log records. The
text between ``%(color)s`` and ``%(end_color)s`` will be colored
depending on the level if color support is on.
:arg dict colors: color mappings from logging level to terminal color
code
:arg string datefmt: Datetime format.
Used for formatting ``(asctime)`` placeholder in ``prefix_fmt``.
.. versionchanged:: 3.2
Added ``fmt`` and ``datefmt`` arguments.
"""
logging.Formatter.__init__(self, datefmt=datefmt)
self._fmt = fmt
self._colors = {}
if color and _stderr_supports_color():
# The curses module has some str/bytes confusion in
# python3. Until version 3.2.3, most methods return
# bytes, but only accept strings. In addition, we want to
# output these strings with the logging module, which
# works with unicode strings. The explicit calls to
# unicode() below are harmless in python2 but will do the
# right conversion in python 3.
fg_color = (curses.tigetstr("setaf") or
curses.tigetstr("setf") or "")
if (3, 0) < sys.version_info < (3, 2, 3):
fg_color = unicode_type(fg_color, "ascii")
for levelno, code in colors.items():
self._colors[levelno] = unicode_type(curses.tparm(fg_color, code), "ascii")
self._normal = unicode_type(curses.tigetstr("sgr0"), "ascii")
else:
self._normal = ''
def __init__(self, color, *args, **kwargs):
logging.Formatter.__init__(self, *args, **kwargs)
self._color = color
if color:
fg_color = (curses.tigetstr("setaf") or
curses.tigetstr("setf") or "")
if (3, 0) < sys.version_info < (3, 2, 3):
fg_color = six.text_type(fg_color, "ascii")
self._colors = {
logging.DEBUG: six.text_type(
curses.tparm(fg_color, 4),
"ascii"
), # Blue
logging.INFO: six.text_type(
curses.tparm(fg_color, 2),
"ascii"
), # Green
logging.WARNING: six.text_type(
curses.tparm(fg_color, 3),
"ascii"
), # Yellow
logging.ERROR: six.text_type(
curses.tparm(fg_color, 1),
"ascii"
), # Red
}
self._normal = six.text_type(curses.tigetstr("sgr0"), "ascii")
def unicode_cap(cap):
"""Return the result of ``tigetstr`` except as Unicode."""
return tigetstr(cap).decode('latin1')
def unicode_parm(cap, *parms):
"""Return the result of ``tparm(tigetstr())`` except as Unicode."""
return tparm(tigetstr(cap), *parms).decode('latin1')
def _resolve_capability(self, atom):
"""Return a terminal code for a capname or a sugary name, or an empty
Unicode.
The return value is always Unicode, because otherwise it is clumsy
(especially in Python 3) to concatenate with real (Unicode) strings.
"""
code = tigetstr(self._sugar.get(atom, atom))
if code:
# See the comment in ParametrizingString for why this is latin1.
return code.decode('latin1')
return u''
def __call__(self, *args):
try:
# Re-encode the cap, because tparm() takes a bytestring in Python
# 3. However, appear to be a plain Unicode string otherwise so
# concats work.
#
# We use *latin1* encoding so that bytes emitted by tparm are
# encoded to their native value: some terminal kinds, such as
# 'avatar' or 'kermit', emit 8-bit bytes in range 0x7f to 0xff.
# latin1 leaves these values unmodified in their conversion to
# unicode byte values. The terminal emulator will "catch" and
# handle these values, even if emitting utf8-encoded text, where
# these bytes would otherwise be illegal utf8 start bytes.
parametrized = tparm(self.encode('latin1'), *args).decode('latin1')
return (parametrized if self._normal is None else
FormattingString(parametrized, self._normal))
except curses.error:
# Catch "must call (at least) setupterm() first" errors, as when
# running simply `nosetests` (without progressive) on nose-
# progressive. Perhaps the terminal has gone away between calling
# tigetstr and calling tparm.
return u''
except TypeError:
# If the first non-int (i.e. incorrect) arg was a string, suggest
# something intelligent:
if len(args) == 1 and isinstance(args[0], basestring):
raise TypeError(
'A native or nonexistent capability template received '
'%r when it was expecting ints. You probably misspelled a '
'formatting call like bright_red_on_white(...).' % args)
else:
# Somebody passed a non-string; I don't feel confident
# guessing what they were trying to do.
raise
def __init__(self, color=True, fmt=DEFAULT_FORMAT,
datefmt=DEFAULT_DATE_FORMAT, colors=DEFAULT_COLORS):
r"""
:arg bool color: Enables color support.
:arg string fmt: Log message format.
It will be applied to the attributes dict of log records. The
text between ``%(color)s`` and ``%(end_color)s`` will be colored
depending on the level if color support is on.
:arg dict colors: color mappings from logging level to terminal color
code
:arg string datefmt: Datetime format.
Used for formatting ``(asctime)`` placeholder in ``prefix_fmt``.
.. versionchanged:: 3.2
Added ``fmt`` and ``datefmt`` arguments.
"""
logging.Formatter.__init__(self, datefmt=datefmt)
self._fmt = fmt
self._colors = {}
if color and _stderr_supports_color():
# The curses module has some str/bytes confusion in
# python3. Until version 3.2.3, most methods return
# bytes, but only accept strings. In addition, we want to
# output these strings with the logging module, which
# works with unicode strings. The explicit calls to
# unicode() below are harmless in python2 but will do the
# right conversion in python 3.
fg_color = (curses.tigetstr("setaf") or
curses.tigetstr("setf") or "")
if (3, 0) < sys.version_info < (3, 2, 3):
fg_color = unicode_type(fg_color, "ascii")
for levelno, code in colors.items():
self._colors[levelno] = unicode_type(curses.tparm(fg_color, code), "ascii")
self._normal = unicode_type(curses.tigetstr("sgr0"), "ascii")
else:
self._normal = ''
def activate(self):
# Hide cursor
curses.setupterm()
sys.stderr.buffer.write(curses.tigetstr('civis'))
self.update(self._pos)
self._activated = True
def done(self):
# Force update to last known pos, in case it wasn't printed due to the threshold
self.update(self._pos, force=True)
sys.stderr.write('\n')
# Restore cursor
sys.stderr.buffer.write(curses.tigetstr('cnorm'))
self._activated = False
def terminal_has_colors():
if sys.platform=='cygwin' and 'USE_COLOR' not in os.environ:
# Avoid importing curses that causes illegal operation
# with a message:
# PYTHON2 caused an invalid page fault in
# module CYGNURSES7.DLL as 015f:18bbfc28
# Details: Python 2.3.3 [GCC 3.3.1 (cygming special)]
# ssh to Win32 machine from debian
# curses.version is 2.2
# CYGWIN_98-4.10, release 1.5.7(0.109/3/2))
return 0
if hasattr(sys.stdout, 'isatty') and sys.stdout.isatty():
try:
import curses
curses.setupterm()
if (curses.tigetnum("colors") >= 0
and curses.tigetnum("pairs") >= 0
and ((curses.tigetstr("setf") is not None
and curses.tigetstr("setb") is not None)
or (curses.tigetstr("setaf") is not None
and curses.tigetstr("setab") is not None)
or curses.tigetstr("scp") is not None)):
return 1
except Exception:
pass
return 0
