Module tf.core.timestamp
Timed messages
Error and informational messages can be issued, with a time indication.
Global variables
var AUTO-
Convenient level of silence.
var DEEP-
No output, except error messages.
var SILENT_D-
Default value for the silent parameter.
The value is
"terse" var TERSE-
More silence.
var VERBOSE-
Increased verbosity.
Functions
def silentConvert(arg)-
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def silentConvert(arg): if arg is None: return SILENT_D if arg is False: return VERBOSE if arg is True: return DEEP if type(arg) is str and arg in {VERBOSE, AUTO, TERSE, DEEP}: return arg return not not arg
Classes
class Timestamp (silent='auto', level=None)-
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class Timestamp: def __init__(self, silent=SILENT_D, level=None): """Create a controller for timed messages. You can specify the degree of verbosity and also an indentation level. The verbosity affects the display of the `info`, `warning`, and `error` methods that are defined in this class, but can also affects messages emitted by other parts of the application, such as: * the display of the number of results in searches * the header that is displayed after the incantation of TF. Parameters ---------- silent: string, optional tf.core.timestamp.SILENT_D The verbosity. Here are the values and their effects: `"verbose"` or `False`: Show all `info`, `warning`, `error` messages. In incantation headers, show the full metadata of all features. `"auto"`: Like `"verbose"`, but in incantation headers, show the feature descriptions only, not the full metadata. `"terse"` or `None`: **(default)** Like `"auto"`, but do not show `log` messages. `"deep"` or `True`: Like `"terse"` but do not show `log` and `warning` messages. Do not show fetched datasets between the incantation and the header, and do not show the header either. Do not show the number of results after searches. """ silent = silentConvert(silent) indent = self.indent self.oneLevelRep = " | " self.timestamp = {} self.level = 0 indent(level=level, reset=True) self.log = [] self.verbose = -2 # regulates all messages self.silent = silent # regulates informational and warning messages only def raw_msg(self, msg, tm=True, nl=True, cache=0, error=False): # cache is a list: append to cache, do not output anything # cache = -1: only to cache # cache = 1: to cache and to console # cache = 0: only to console if self.verbose != -2 and self.level >= self.verbose: return if type(msg) is not str: msg = repr(msg) msg = ux(msg) if tm: msgRep = f"{self.levelRep}{self._elapsed():>7} {msg}".replace( "\n", "\n" + self.levelRep ) else: msgRep = f"{self.levelRep}{msg}".replace("\n", "\n" + self.levelRep) if type(cache) is list: cache.append((error, nl, msgRep)) else: if cache: self.log.append((error, nl, msgRep)) if cache >= 0: channel = sys.stderr if error else sys.stdout channel.write("{}{}".format(msgRep, "\n" if nl else "")) channel.flush() def reset(self): self.log = [] def cache(self, _asString=False): if _asString: lines = [] for (error, nl, msgRep) in self.log: lines.append("{}{}".format(msgRep, "\n" if nl else "")) result = "".join(lines) else: for (error, nl, msgRep) in self.log: channel = sys.stderr if error else sys.stdout channel.write("{}{}".format(msgRep, "\n" if nl else "")) sys.stderr.flush() sys.stdout.flush() self.log = [] if _asString: return result def debug(self, msg, tm=True, nl=True, cache=0, force=False): """Sends a debug message to the standard output. Debug messages are normally silenced, in that case nothing happens. Parameters ---------- msg: string The string to be displayed tm: boolean, optional True Whether the message is to be prepended with the elapsed time. nl: boolean, optional True Whether a newline should be appended to the message. cache: integer, optional 0 Whether the message should be cached. force: boolean, optional False If True, any silent condition is overridden. !!! caution "Silence" Informational messages are not displayed in silent mode. """ if force or self.silent in {VERBOSE}: self.raw_msg(msg, tm=tm, nl=nl, cache=cache) def info(self, msg, tm=True, nl=True, cache=0, force=False): """Sends an informational message to the standard output. Info messages may have been silenced, in that case nothing happens. Parameters ---------- msg: string The string to be displayed tm: boolean, optional True Whether the message is to be prepended with the elapsed time. nl: boolean, optional True Whether a newline should be appended to the message. cache: integer, optional 0 Whether the message should be cached. force: boolean, optional False If True, any silent condition is overridden. !!! caution "Silence" Informational messages are not displayed in silent mode. """ if force or self.silent in {VERBOSE, AUTO}: self.raw_msg(msg, tm=tm, nl=nl, cache=cache) def warning(self, msg, tm=True, nl=True, cache=0, force=False): """Sends an warning message to the standard output. Warning messages may have been silenced, in that case nothing happens. Parameters ---------- msg: string The string to be displayed tm: boolean, optional True Whether the message is to be prepended with the elapsed time. nl: boolean, optional True Whether a newline should be appended to the message. cache: integer, optional 0 Whether the message should be cached. force: boolean, optional False If True, any silent condition is overridden. !!! caution "Silence" Warning messages are not displayed if silent mode is `deep`. """ if force or self.silent in {VERBOSE, AUTO, TERSE}: self.raw_msg(msg, tm=tm, nl=nl, cache=cache) def error(self, msg, tm=True, nl=True, cache=0, force=True): """Sends an warning message to the standard error. In a Jupyter notebook, the standard error is displayed with a reddish background color. Parameters ---------- msg: string The string to be displayed tm: boolean, optional True Whether the message is to be prepended with the elapsed time. nl: boolean, optional True Whether a newline should be appended to the message. cache: integer, optional 0 Whether the message should be cached. !!! caution "Silence" Warning messages are displayed irrespective of the silent mode. """ self.raw_msg(msg, tm=tm, nl=nl, cache=cache, error=True) def indent(self, level=None, reset=False, _verbose=None): """Changes the indentation and timing of forthcoming messages. Messages can be indented. Multiline messages will have the indent prepended to each of its lines. The reported time is with respect to a starting point, which can be reset. The starting points at different levels are independent of each other. Parameters ---------- level: integer|boolean, optional None The indentation level. If an integer, it sets the indentation level. If a boolean, it decreases or increases the indentation level, but not below zero. `True` increases the indent with one level, `False` decreases the indent. reset: boolean, optional False If `True`, the elapsed time to will be reset to 0 at the given level. """ self.level = ( 0 if level is None else level if type(level) is int else self.level + 1 if level else self.level - 1 ) if self.level < 0: self.level = 0 self.levelRep = self.oneLevelRep * self.level if reset: self.timestamp[self.level] = time.time() if _verbose is not None: self.verbose = _verbose def isSilent(self): """The current verbosity. Returns ------- string See `VERBOSE`, `AUTO`, `TERSE`, `DEEP`. """ return self.silent def setSilent(self, silent): """Set the verbosity. Parameters ---------- silent: string, optional tf.core.timestamp.SILENT_D See `tf.core.timestamp.Timestamp` """ silent = silentConvert(silent) self.silent = silent def silentOn(self, deep=False): """Suppress informational messages. Parameters ---------- deep: boolean, optional False If `True` also suppress warnings. """ wasSilent = self.silent self.wasSilent = wasSilent if wasSilent in {VERBOSE, AUTO, TERSE} else AUTO self.silent = DEEP if deep else TERSE def silentOff(self): """Enable informational messages.""" wasSilent = getattr(self, "wasSilent", AUTO) self.silent = wasSilent def _elapsed(self): interval = time.time() - self.timestamp.setdefault(self.level, time.time()) if interval < 10: return f"{interval: 2.2f}s" interval = int(round(interval)) if interval < 60: return f"{interval:>2d}s" if interval < 3600: return f"{interval // 60:>2d}m {interval % 60:>02d}s" return ( f"{interval // 3600:>2d}h {(interval % 3600) // 60:>02d}m" f" {interval % 60:>02d}s" )Create a controller for timed messages.
You can specify the degree of verbosity and also an indentation level. The verbosity affects the display of the
info,warning, anderrormethods that are defined in this class, but can also affects messages emitted by other parts of the application, such as:- the display of the number of results in searches
- the header that is displayed after the incantation of TF.
Parameters
silent:string, optionalSILENT_D-
The verbosity. Here are the values and their effects:
"verbose"orFalse: Show allinfo,warning,errormessages. In incantation headers, show the full metadata of all features."auto": Like"verbose", but in incantation headers, show the feature descriptions only, not the full metadata."terse"orNone: (default) Like"auto", but do not showlogmessages."deep"orTrue: Like"terse"but do not showlogandwarningmessages. Do not show fetched datasets between the incantation and the header, and do not show the header either. Do not show the number of results after searches.
Methods
def cache(self)-
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def cache(self, _asString=False): if _asString: lines = [] for (error, nl, msgRep) in self.log: lines.append("{}{}".format(msgRep, "\n" if nl else "")) result = "".join(lines) else: for (error, nl, msgRep) in self.log: channel = sys.stderr if error else sys.stdout channel.write("{}{}".format(msgRep, "\n" if nl else "")) sys.stderr.flush() sys.stdout.flush() self.log = [] if _asString: return result def debug(self, msg, tm=True, nl=True, cache=0, force=False)-
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def debug(self, msg, tm=True, nl=True, cache=0, force=False): """Sends a debug message to the standard output. Debug messages are normally silenced, in that case nothing happens. Parameters ---------- msg: string The string to be displayed tm: boolean, optional True Whether the message is to be prepended with the elapsed time. nl: boolean, optional True Whether a newline should be appended to the message. cache: integer, optional 0 Whether the message should be cached. force: boolean, optional False If True, any silent condition is overridden. !!! caution "Silence" Informational messages are not displayed in silent mode. """ if force or self.silent in {VERBOSE}: self.raw_msg(msg, tm=tm, nl=nl, cache=cache)Sends a debug message to the standard output.
Debug messages are normally silenced, in that case nothing happens.
Parameters
msg:string- The string to be displayed
tm:boolean, optionalTrue- Whether the message is to be prepended with the elapsed time.
nl:boolean, optionalTrue- Whether a newline should be appended to the message.
cache:integer, optional0- Whether the message should be cached.
force:boolean, optionalFalse- If True, any silent condition is overridden.
Silence
Informational messages are not displayed in silent mode.
def error(self, msg, tm=True, nl=True, cache=0, force=True)-
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def error(self, msg, tm=True, nl=True, cache=0, force=True): """Sends an warning message to the standard error. In a Jupyter notebook, the standard error is displayed with a reddish background color. Parameters ---------- msg: string The string to be displayed tm: boolean, optional True Whether the message is to be prepended with the elapsed time. nl: boolean, optional True Whether a newline should be appended to the message. cache: integer, optional 0 Whether the message should be cached. !!! caution "Silence" Warning messages are displayed irrespective of the silent mode. """ self.raw_msg(msg, tm=tm, nl=nl, cache=cache, error=True)Sends an warning message to the standard error.
In a Jupyter notebook, the standard error is displayed with a reddish background color.
Parameters
msg:string- The string to be displayed
tm:boolean, optionalTrue- Whether the message is to be prepended with the elapsed time.
nl:boolean, optionalTrue- Whether a newline should be appended to the message.
cache:integer, optional0- Whether the message should be cached.
Silence
Warning messages are displayed irrespective of the silent mode.
def indent(self, level=None, reset=False)-
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def indent(self, level=None, reset=False, _verbose=None): """Changes the indentation and timing of forthcoming messages. Messages can be indented. Multiline messages will have the indent prepended to each of its lines. The reported time is with respect to a starting point, which can be reset. The starting points at different levels are independent of each other. Parameters ---------- level: integer|boolean, optional None The indentation level. If an integer, it sets the indentation level. If a boolean, it decreases or increases the indentation level, but not below zero. `True` increases the indent with one level, `False` decreases the indent. reset: boolean, optional False If `True`, the elapsed time to will be reset to 0 at the given level. """ self.level = ( 0 if level is None else level if type(level) is int else self.level + 1 if level else self.level - 1 ) if self.level < 0: self.level = 0 self.levelRep = self.oneLevelRep * self.level if reset: self.timestamp[self.level] = time.time() if _verbose is not None: self.verbose = _verboseChanges the indentation and timing of forthcoming messages.
Messages can be indented. Multiline messages will have the indent prepended to each of its lines.
The reported time is with respect to a starting point, which can be reset. The starting points at different levels are independent of each other.
Parameters
level:integer|boolean, optionalNone- The indentation level.
If an integer, it sets the indentation level.
If a boolean, it decreases or increases the indentation level,
but not below zero.
Trueincreases the indent with one level,Falsedecreases the indent. reset:boolean, optionalFalse- If
True, the elapsed time to will be reset to 0 at the given level.
def info(self, msg, tm=True, nl=True, cache=0, force=False)-
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def info(self, msg, tm=True, nl=True, cache=0, force=False): """Sends an informational message to the standard output. Info messages may have been silenced, in that case nothing happens. Parameters ---------- msg: string The string to be displayed tm: boolean, optional True Whether the message is to be prepended with the elapsed time. nl: boolean, optional True Whether a newline should be appended to the message. cache: integer, optional 0 Whether the message should be cached. force: boolean, optional False If True, any silent condition is overridden. !!! caution "Silence" Informational messages are not displayed in silent mode. """ if force or self.silent in {VERBOSE, AUTO}: self.raw_msg(msg, tm=tm, nl=nl, cache=cache)Sends an informational message to the standard output.
Info messages may have been silenced, in that case nothing happens.
Parameters
msg:string- The string to be displayed
tm:boolean, optionalTrue- Whether the message is to be prepended with the elapsed time.
nl:boolean, optionalTrue- Whether a newline should be appended to the message.
cache:integer, optional0- Whether the message should be cached.
force:boolean, optionalFalse- If True, any silent condition is overridden.
Silence
Informational messages are not displayed in silent mode.
def isSilent(self)-
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def isSilent(self): """The current verbosity. Returns ------- string See `VERBOSE`, `AUTO`, `TERSE`, `DEEP`. """ return self.silent def raw_msg(self, msg, tm=True, nl=True, cache=0, error=False)-
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def raw_msg(self, msg, tm=True, nl=True, cache=0, error=False): # cache is a list: append to cache, do not output anything # cache = -1: only to cache # cache = 1: to cache and to console # cache = 0: only to console if self.verbose != -2 and self.level >= self.verbose: return if type(msg) is not str: msg = repr(msg) msg = ux(msg) if tm: msgRep = f"{self.levelRep}{self._elapsed():>7} {msg}".replace( "\n", "\n" + self.levelRep ) else: msgRep = f"{self.levelRep}{msg}".replace("\n", "\n" + self.levelRep) if type(cache) is list: cache.append((error, nl, msgRep)) else: if cache: self.log.append((error, nl, msgRep)) if cache >= 0: channel = sys.stderr if error else sys.stdout channel.write("{}{}".format(msgRep, "\n" if nl else "")) channel.flush() def reset(self)-
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def reset(self): self.log = [] def setSilent(self, silent)-
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def setSilent(self, silent): """Set the verbosity. Parameters ---------- silent: string, optional tf.core.timestamp.SILENT_D See `tf.core.timestamp.Timestamp` """ silent = silentConvert(silent) self.silent = silent def silentOff(self)-
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def silentOff(self): """Enable informational messages.""" wasSilent = getattr(self, "wasSilent", AUTO) self.silent = wasSilentEnable informational messages.
def silentOn(self, deep=False)-
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def silentOn(self, deep=False): """Suppress informational messages. Parameters ---------- deep: boolean, optional False If `True` also suppress warnings. """ wasSilent = self.silent self.wasSilent = wasSilent if wasSilent in {VERBOSE, AUTO, TERSE} else AUTO self.silent = DEEP if deep else TERSESuppress informational messages.
Parameters
deep:boolean, optionalFalse- If
Truealso suppress warnings.
def warning(self, msg, tm=True, nl=True, cache=0, force=False)-
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def warning(self, msg, tm=True, nl=True, cache=0, force=False): """Sends an warning message to the standard output. Warning messages may have been silenced, in that case nothing happens. Parameters ---------- msg: string The string to be displayed tm: boolean, optional True Whether the message is to be prepended with the elapsed time. nl: boolean, optional True Whether a newline should be appended to the message. cache: integer, optional 0 Whether the message should be cached. force: boolean, optional False If True, any silent condition is overridden. !!! caution "Silence" Warning messages are not displayed if silent mode is `deep`. """ if force or self.silent in {VERBOSE, AUTO, TERSE}: self.raw_msg(msg, tm=tm, nl=nl, cache=cache)Sends an warning message to the standard output.
Warning messages may have been silenced, in that case nothing happens.
Parameters
msg:string- The string to be displayed
tm:boolean, optionalTrue- Whether the message is to be prepended with the elapsed time.
nl:boolean, optionalTrue- Whether a newline should be appended to the message.
cache:integer, optional0- Whether the message should be cached.
force:boolean, optionalFalse- If True, any silent condition is overridden.
Silence
Warning messages are not displayed if silent mode is
deep.