Module tf.core.helpers
Expand source code Browse git
import os
import sys
from sys import getsizeof, stderr
import re
from itertools import chain
from collections import deque
from subprocess import run as run_cmd, CalledProcessError
from ..parameters import OMAP
from .files import unexpanduser as ux
NBSP = "\u00a0" # non-breaking space
TO_SYM = "↦"
FROM_SYM = "⇥"
LETTER = set("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
VALID = set("_0123456789") | LETTER
MQL_KEYWORDS = dict(
database="dbase",
default="dfault",
first="frst",
focus="fcus",
gap="gp",
last="lst",
notexist="notexst",
object="objct",
retrieve="retriev",
noretrieve="noretriev",
type="typ",
)
MQL_KEYWORDS["as"] = "as_"
MQL_KEYWORDS["or"] = "or_"
WARN32 = """WARNING: you are not running a 64-bit implementation of Python.
You may run into memory problems if you load a big data set.
Consider installing a 64-bit Python.
"""
MSG64 = """Running on 64-bit Python"""
SEP_RE = re.compile(r"[\n\t ,]+")
STRIP_RE = re.compile(r"(?:^[\n\t ,]+)|(?:[\n\t ,]+$)", re.S)
VAR_RE = re.compile(r"\{([^}]+?)(:[^}]*)?\}")
MSG_LINE_RE = re.compile(r"^( *[0-9]+) (.*)$")
NUM_ALFA_RE = re.compile(r"^([0-9]*)([^0-9]*)(.*)$")
QUAD = " "
def versionSort(x):
parts = []
for p in x.split("."):
match = NUM_ALFA_RE.match(p)
(num, alfa, rest) = match.group(1, 2, 3)
parts.append((int(num) if num else 0, alfa, rest))
return tuple(parts)
def var(envVar):
"""Retrieves the value of an environment variable.
Parameters
----------
envVar: string
The name of the environment variable.
Returns
-------
string or void
The value of the environment variable if it exists, otherwise `None`.
"""
return os.environ.get(envVar, None)
def isInt(val):
try:
val = int(val)
except Exception:
return False
return True
def mathEsc(val):
"""Escape $ signs to `<span>$</span>`.
To prevent them from being interpreted as math in a Jupyter notebook
in cases where you need them literally.
"""
return "" if val is None else (str(val).replace("$", "<span>$</span>"))
def mdEsc(val, math=False):
"""Escape certain markdown characters.
Parameters
----------
val: string
The input value
math: boolean, optional False
Whether retain TeX notation.
If True, `$` is not escaped, if False, it is not escaped.
"""
return (
""
if val is None
else (str(val).replace("|", "|"))
if math
else (str(val).replace("|", "|").replace("$", "<span>$</span>"))
)
def htmlEsc(val, math=False):
"""Escape certain HTML characters by HTML entities.
To prevent them to be interpreted as HTML
in cases where you need them literally.
Parameters
----------
val: string
The input value
math: boolean, optional False
Whether retain TeX notation.
If True, `$` is not escaped, if False, it is not escaped.
"""
return (
""
if val is None
else (str(val).replace("&", "&").replace("<", "<"))
if math
else (
str(val)
.replace("&", "&")
.replace("<", "<")
.replace("$", "<span>$</span>")
)
)
def xmlEsc(val):
"""Escape certain HTML characters by XML entities.
To prevent them to be interpreted as XML
in cases where you need them literally.
"""
return (
""
if val is None
else (
str(val)
.replace("&", "&")
.replace("<", "<")
.replace(">", ">")
.replace("'", "'")
.replace('"', """)
)
)
def mdhtmlEsc(val, math=False):
"""Escape certain Markdown characters by HTML entities or span elements.
To prevent them to be interpreted as Markdown
in cases where you need them literally.
Parameters
----------
val: string
The input value
math: boolean, optional False
Whether retain TeX notation.
If True, `$` is not escaped, if False, it is not escaped.
"""
return (
""
if val is None
else (
str(val).replace("&", "&").replace("<", "<").replace("|", "|")
)
if math
else (
str(val)
.replace("&", "&")
.replace("<", "<")
.replace("|", "|")
.replace("$", "<span>$</span>")
)
)
def tsvEsc(x):
"""Escapes a double quote for strings to be included in TSV data.
Only `"` and `'` at the beginning of the string are escaped.
The escaping is realized by putting a backslash at the beginning.
"""
s = str(x)
return s if s == "" else f"\\{s}" if s[0] in {"'", '"'} else s
PANDAS_QUOTE = '"'
PANDAS_ESCAPE = "\u0001"
def pandasEsc(x):
"""Escapes the character that will be used as the Pandas quote char.
The escaping is realized by prepending a special char the quote char.
Also: all tab characters will be replaced by single spaces.
"""
return (
x
if x == ""
else str(x)
.replace("\t", " ")
.replace(PANDAS_QUOTE, PANDAS_ESCAPE + PANDAS_QUOTE)
)
def camel(name):
if not name:
return name
temp = name.replace("_", " ").title().replace(" ", "")
return temp[0].lower() + temp[1:]
def check32():
warn = ""
msg = ""
on32 = sys.maxsize < 2**63 - 1
if on32 < 2**63 - 1:
warn = WARN32
else:
msg = MSG64
return (on32, warn, msg)
def console(*msg, error=False, newline=True):
msg = " ".join(m if type(m) is str else repr(m) for m in msg)
msg = "" if not msg else ux(msg)
msg = msg[1:] if msg.startswith("\n") else msg
msg = msg[0:-1] if msg.endswith("\n") else msg
target = sys.stderr if error else sys.stdout
nl = "\n" if newline else ""
target.write(f"{msg}{nl}")
target.flush()
def cleanName(name):
clean = "".join(c if c in VALID else "_" for c in name)
if clean == "" or not clean[0] in LETTER:
clean = "x" + clean
return MQL_KEYWORDS.get(clean, clean)
def isClean(name):
if name is None or len(name) == 0 or name[0] not in LETTER:
return False
return all(c in VALID for c in name[1:])
def flattenToSet(features):
theseFeatures = set()
if type(features) is str:
theseFeatures |= setFromStr(features)
else:
for feature in features:
if type(feature) is str:
theseFeatures.add(feature)
else:
feature = feature[1]
theseFeatures |= setFromValue(feature)
return theseFeatures
def setFromSpec(spec):
covered = set()
for r_str in spec.split(","):
bounds = r_str.split("-")
if len(bounds) == 1:
covered.add(int(r_str))
else:
b = int(bounds[0])
e = int(bounds[1])
if e < b:
(b, e) = (e, b)
for n in range(b, e + 1):
covered.add(n)
return covered
def rangesFromSet(nodeSet):
# ranges = []
curstart = None
curend = None
for n in sorted(nodeSet):
if curstart is None:
curstart = n
curend = n
elif n == curend + 1:
curend = n
else:
yield (curstart, curend)
# ranges.append((curstart, curend))
curstart = n
curend = n
if curstart is not None:
yield (curstart, curend)
# ranges.append((curstart, curend))
# return ranges
def rangesFromList(nodeList): # the list must be sorted
curstart = None
curend = None
for n in nodeList:
if curstart is None:
curstart = n
curend = n
elif n == curend + 1:
curend = n
else:
yield (curstart, curend)
curstart = n
curend = n
if curstart is not None:
yield (curstart, curend)
def specFromRanges(ranges): # ranges must be normalized
return ",".join(
"{}".format(r[0]) if r[0] == r[1] else "{}-{}".format(*r) for r in ranges
)
def specFromRangesLogical(ranges): # ranges must be normalized
return [r[0] if r[0] == r[1] else [r[0], r[1]] for r in ranges]
def valueFromTf(tf):
return "\\".join(
x.replace("\\t", "\t").replace("\\n", "\n") for x in tf.split("\\\\")
)
def tfFromValue(val):
valTp = type(val)
isInt = valTp is int
isStr = valTp is str
if not isInt and not isStr:
console(f"Wrong type for a TF value: {valTp}: {val}", error=True)
return None
return (
str(val)
if type(val) is int
else val.replace("\\", "\\\\").replace("\t", "\\t").replace("\n", "\\n")
)
def makeIndex(data):
inv = {}
for n, m in data.items():
inv.setdefault(m, set()).add(n)
return inv
def makeInverse(data):
inverse = {}
for n in data:
for m in data[n]:
inverse.setdefault(m, set()).add(n)
return inverse
def makeInverseVal(data):
inverse = {}
for n in data:
for m, val in data[n].items():
inverse.setdefault(m, {})[n] = val
return inverse
def nbytes(by):
units = ["B", "KB", "MB", "GB", "TB"]
for i in range(len(units)):
if by < 1024 or i == len(units) - 1:
fmt = "{:>5}{}" if i == 0 else "{:>5.1f}{}"
return fmt.format(by, units[i])
by /= 1024
def collectFormats(config):
featureSet = set()
def collectFormat(tpl):
features = []
default = ""
def varReplace(match):
nonlocal default
varText = match.group(1)
default = (match.group(2) or ":")[1:]
fts = tuple(varText.split("/"))
features.append((fts, default))
for ft in fts:
featureSet.add(ft)
return "{}"
rtpl = VAR_RE.sub(varReplace, tpl)
return (tpl, rtpl, tuple(features))
formats = {}
for fmt, tpl in sorted(config.items()):
if fmt.startswith("fmt:"):
formats[fmt[4:]] = collectFormat(tpl)
return (formats, sorted(featureSet))
def itemize(string, sep=None):
if not string:
return []
if not sep:
return string.strip().split()
return string.strip().split(sep)
def fitemize(value):
if not value:
return []
if type(value) is str:
return SEP_RE.split(STRIP_RE.sub("", value))
if type(value) in {bool, int, float}:
return [str(value)]
return list(str(v) for v in value)
def project(iterableOfTuples, maxDimension):
if maxDimension == 1:
return {r[0] for r in iterableOfTuples}
return {r[0:maxDimension] for r in iterableOfTuples}
def wrapMessages(messages):
if type(messages) is str:
messages = messages.split("\n")
html = []
status = True
for msg in messages:
if type(msg) is tuple:
(error, nl, msgRep) = msg
if error:
status = False
match = MSG_LINE_RE.match(msgRep)
msg = msgRep + ("<br>" if nl else "")
clsName = "eline" if error and not match else "tline"
else:
match = MSG_LINE_RE.match(msg)
clsName = "tline" if match else "eline"
if clsName == "eline":
status = False
msg = msg.replace("\n", "<br>")
html.append(f'<span class="{clsName.lower()}">{msg}</span>')
return (status, "".join(html))
def makeExamples(nodeList):
lN = len(nodeList)
if lN <= 10:
return f"{lN:>7} x: " + (", ".join(str(n) for n in nodeList))
else:
return (
f"{lN:>7} x: "
+ (", ".join(str(n) for n in nodeList[0:5]))
+ " ... "
+ (", ".join(str(n) for n in nodeList[-5:]))
)
def setFromValue(x, asInt=False):
if x is None:
return set()
typeX = type(x)
if typeX in {set, frozenset}:
return x
elif typeX in {str, dict, list, tuple}:
if typeX is str:
x = SEP_RE.split(x)
return {int(p) for p in x if p.isdecimal()} if asInt else {p for p in x if p}
return {x}
def setFromStr(x):
if x is None:
return set()
return {p for p in SEP_RE.split(x) if p}
def mergeDictOfSets(d1, d2):
for n, ms in d2.items():
if n in d1:
d1[n] |= ms
else:
d1[n] = ms
def mergeDict(source, overrides):
"""Merge overrides into a source dictionary recursively.
Parameters
----------
source: dict
The source dictionary, which will be modified by the overrides.
overrides: dict
The overrides, itself a dictionary.
"""
for k, v in overrides.items():
if k in source and type(source[k]) is dict:
mergeDict(source[k], v)
else:
source[k] = v
def getAllRealFeatures(api):
"""Get all config features and all loaded node and edge features.
Except `omap@v-w` features.
When we take volumes or collections from works,
we need to pass these features on.
This will exclude the computed features and the node/edge features
that are not loaded by default.
"""
TF = api.TF
allFeatures = set()
for feat, fObj in TF.features.items():
if fObj.method:
continue
if fObj.isConfig:
allFeatures.add(feat)
allFeatures |= set(api.Fall())
allFeatures |= {e for e in api.Eall() if not e.startswith(OMAP)}
return allFeatures
def formatMeta(featureMeta):
"""Reorder meta data.
Parameters
----------
meta: dict
Dictionary of meta data: keyed by feature, valued by a dict
of metadata in the form of key values
Returns
-------
dict
A copy of the dict but with the values for metadata keys
`desc` and `eg` merged under a new key `description`,
and the keys `desc` and `eg` deleted.
"""
result = {}
for f, meta in featureMeta.items():
fmeta = {}
for k, v in meta.items():
if k == "eg" and "desc" in meta:
continue
if k == "desc":
eg = meta.get("eg", "")
egRep = f" ({eg})" if eg else ""
fmeta["description"] = f"{v}{egRep}"
else:
fmeta[k] = v
result[f] = fmeta
return result
def deepSize(o, handlers={}, verbose=False, seen=None):
"""Returns the approximate memory footprint an object and all of its contents.
Automatically finds the contents of the following builtin containers and
their subclasses: tuple, list, deque, dict, set and frozenset.
To search other containers, add handlers to iterate over their contents:
handlers = {SomeContainerClass: iter,
OtherContainerClass: OtherContainerClass.get_elements}
"""
def dict_handler(d):
return chain.from_iterable(d.items())
all_handlers = {
tuple: iter,
list: iter,
deque: iter,
dict: dict_handler,
set: iter,
frozenset: iter,
}
all_handlers.update(handlers) # user handlers take precedence
if seen is None:
seen = set() # track which object id's have already been seen
default_size = getsizeof(0) # estimate sizeof object without __sizeof__
def sizeof(o):
if id(o) in seen: # do not double count the same object
return 0
seen.add(id(o))
s = getsizeof(o, default_size)
if verbose:
print(s, type(o), repr(o), file=stderr)
for typ, handler in all_handlers.items():
if isinstance(o, typ):
s += sum(map(sizeof, handler(o)))
break
return s
return sizeof(o)
def run(cmdline, workDir=None):
"""Runs a shell command and returns all relevant info.
The function runs a command line in a shell, and returns
whether the command was successfull, and also what the output was, separately for
standard error and standard output.
Parameters
----------
cmdline:
The command line to execute.
workDir: string, optional None
The working directory where the command should be executed.
If `None` the current directory is used.
"""
try:
result = run_cmd(
cmdline,
shell=True,
cwd=workDir,
check=True,
capture_output=True,
)
stdOut = result.stdout.decode("utf8").strip()
stdErr = result.stderr.decode("utf8").strip()
good = True
except CalledProcessError as e:
stdOut = e.stdout.decode("utf8").strip()
stdErr = e.stderr.decode("utf8").strip()
good = False
return (good, stdOut, stdErr)Functions
def camel(name)-
Expand source code Browse git
def camel(name): if not name: return name temp = name.replace("_", " ").title().replace(" ", "") return temp[0].lower() + temp[1:] def check32()-
Expand source code Browse git
def check32(): warn = "" msg = "" on32 = sys.maxsize < 2**63 - 1 if on32 < 2**63 - 1: warn = WARN32 else: msg = MSG64 return (on32, warn, msg) def cleanName(name)-
Expand source code Browse git
def cleanName(name): clean = "".join(c if c in VALID else "_" for c in name) if clean == "" or not clean[0] in LETTER: clean = "x" + clean return MQL_KEYWORDS.get(clean, clean) def collectFormats(config)-
Expand source code Browse git
def collectFormats(config): featureSet = set() def collectFormat(tpl): features = [] default = "" def varReplace(match): nonlocal default varText = match.group(1) default = (match.group(2) or ":")[1:] fts = tuple(varText.split("/")) features.append((fts, default)) for ft in fts: featureSet.add(ft) return "{}" rtpl = VAR_RE.sub(varReplace, tpl) return (tpl, rtpl, tuple(features)) formats = {} for fmt, tpl in sorted(config.items()): if fmt.startswith("fmt:"): formats[fmt[4:]] = collectFormat(tpl) return (formats, sorted(featureSet)) def console(*msg, error=False, newline=True)-
Expand source code Browse git
def console(*msg, error=False, newline=True): msg = " ".join(m if type(m) is str else repr(m) for m in msg) msg = "" if not msg else ux(msg) msg = msg[1:] if msg.startswith("\n") else msg msg = msg[0:-1] if msg.endswith("\n") else msg target = sys.stderr if error else sys.stdout nl = "\n" if newline else "" target.write(f"{msg}{nl}") target.flush() def deepSize(o, handlers={}, verbose=False, seen=None)-
Returns the approximate memory footprint an object and all of its contents.
Automatically finds the contents of the following builtin containers and their subclasses: tuple, list, deque, dict, set and frozenset. To search other containers, add handlers to iterate over their contents:
handlers = {SomeContainerClass: iter, OtherContainerClass: OtherContainerClass.get_elements}Expand source code Browse git
def deepSize(o, handlers={}, verbose=False, seen=None): """Returns the approximate memory footprint an object and all of its contents. Automatically finds the contents of the following builtin containers and their subclasses: tuple, list, deque, dict, set and frozenset. To search other containers, add handlers to iterate over their contents: handlers = {SomeContainerClass: iter, OtherContainerClass: OtherContainerClass.get_elements} """ def dict_handler(d): return chain.from_iterable(d.items()) all_handlers = { tuple: iter, list: iter, deque: iter, dict: dict_handler, set: iter, frozenset: iter, } all_handlers.update(handlers) # user handlers take precedence if seen is None: seen = set() # track which object id's have already been seen default_size = getsizeof(0) # estimate sizeof object without __sizeof__ def sizeof(o): if id(o) in seen: # do not double count the same object return 0 seen.add(id(o)) s = getsizeof(o, default_size) if verbose: print(s, type(o), repr(o), file=stderr) for typ, handler in all_handlers.items(): if isinstance(o, typ): s += sum(map(sizeof, handler(o))) break return s return sizeof(o) def fitemize(value)-
Expand source code Browse git
def fitemize(value): if not value: return [] if type(value) is str: return SEP_RE.split(STRIP_RE.sub("", value)) if type(value) in {bool, int, float}: return [str(value)] return list(str(v) for v in value) def flattenToSet(features)-
Expand source code Browse git
def flattenToSet(features): theseFeatures = set() if type(features) is str: theseFeatures |= setFromStr(features) else: for feature in features: if type(feature) is str: theseFeatures.add(feature) else: feature = feature[1] theseFeatures |= setFromValue(feature) return theseFeatures def formatMeta(featureMeta)-
Reorder meta data.
Parameters
meta:dict- Dictionary of meta data: keyed by feature, valued by a dict of metadata in the form of key values
Returns
dict- A copy of the dict but with the values for metadata keys
descandegmerged under a new keydescription, and the keysdescandegdeleted.
Expand source code Browse git
def formatMeta(featureMeta): """Reorder meta data. Parameters ---------- meta: dict Dictionary of meta data: keyed by feature, valued by a dict of metadata in the form of key values Returns ------- dict A copy of the dict but with the values for metadata keys `desc` and `eg` merged under a new key `description`, and the keys `desc` and `eg` deleted. """ result = {} for f, meta in featureMeta.items(): fmeta = {} for k, v in meta.items(): if k == "eg" and "desc" in meta: continue if k == "desc": eg = meta.get("eg", "") egRep = f" ({eg})" if eg else "" fmeta["description"] = f"{v}{egRep}" else: fmeta[k] = v result[f] = fmeta return result def getAllRealFeatures(api)-
Get all config features and all loaded node and edge features.
Except
omap@v-wfeatures. When we take volumes or collections from works, we need to pass these features on.This will exclude the computed features and the node/edge features that are not loaded by default.
Expand source code Browse git
def getAllRealFeatures(api): """Get all config features and all loaded node and edge features. Except `omap@v-w` features. When we take volumes or collections from works, we need to pass these features on. This will exclude the computed features and the node/edge features that are not loaded by default. """ TF = api.TF allFeatures = set() for feat, fObj in TF.features.items(): if fObj.method: continue if fObj.isConfig: allFeatures.add(feat) allFeatures |= set(api.Fall()) allFeatures |= {e for e in api.Eall() if not e.startswith(OMAP)} return allFeatures def htmlEsc(val, math=False)-
Escape certain HTML characters by HTML entities.
To prevent them to be interpreted as HTML in cases where you need them literally.
Parameters
val:string- The input value
math:boolean, optionalFalse- Whether retain TeX notation.
If True,
$is not escaped, if False, it is not escaped.
Expand source code Browse git
def htmlEsc(val, math=False): """Escape certain HTML characters by HTML entities. To prevent them to be interpreted as HTML in cases where you need them literally. Parameters ---------- val: string The input value math: boolean, optional False Whether retain TeX notation. If True, `$` is not escaped, if False, it is not escaped. """ return ( "" if val is None else (str(val).replace("&", "&").replace("<", "<")) if math else ( str(val) .replace("&", "&") .replace("<", "<") .replace("$", "<span>$</span>") ) ) def isClean(name)-
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def isClean(name): if name is None or len(name) == 0 or name[0] not in LETTER: return False return all(c in VALID for c in name[1:]) def isInt(val)-
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def isInt(val): try: val = int(val) except Exception: return False return True def itemize(string, sep=None)-
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def itemize(string, sep=None): if not string: return [] if not sep: return string.strip().split() return string.strip().split(sep) def makeExamples(nodeList)-
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def makeExamples(nodeList): lN = len(nodeList) if lN <= 10: return f"{lN:>7} x: " + (", ".join(str(n) for n in nodeList)) else: return ( f"{lN:>7} x: " + (", ".join(str(n) for n in nodeList[0:5])) + " ... " + (", ".join(str(n) for n in nodeList[-5:])) ) def makeIndex(data)-
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def makeIndex(data): inv = {} for n, m in data.items(): inv.setdefault(m, set()).add(n) return inv def makeInverse(data)-
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def makeInverse(data): inverse = {} for n in data: for m in data[n]: inverse.setdefault(m, set()).add(n) return inverse def makeInverseVal(data)-
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def makeInverseVal(data): inverse = {} for n in data: for m, val in data[n].items(): inverse.setdefault(m, {})[n] = val return inverse def mathEsc(val)-
Escape $ signs to
<span>$</span>.To prevent them from being interpreted as math in a Jupyter notebook in cases where you need them literally.
Expand source code Browse git
def mathEsc(val): """Escape $ signs to `<span>$</span>`. To prevent them from being interpreted as math in a Jupyter notebook in cases where you need them literally. """ return "" if val is None else (str(val).replace("$", "<span>$</span>")) def mdEsc(val, math=False)-
Escape certain markdown characters.
Parameters
val:string- The input value
math:boolean, optionalFalse- Whether retain TeX notation.
If True,
$is not escaped, if False, it is not escaped.
Expand source code Browse git
def mdEsc(val, math=False): """Escape certain markdown characters. Parameters ---------- val: string The input value math: boolean, optional False Whether retain TeX notation. If True, `$` is not escaped, if False, it is not escaped. """ return ( "" if val is None else (str(val).replace("|", "|")) if math else (str(val).replace("|", "|").replace("$", "<span>$</span>")) ) def mdhtmlEsc(val, math=False)-
Escape certain Markdown characters by HTML entities or span elements.
To prevent them to be interpreted as Markdown in cases where you need them literally.
Parameters
val:string- The input value
math:boolean, optionalFalse- Whether retain TeX notation.
If True,
$is not escaped, if False, it is not escaped.
Expand source code Browse git
def mdhtmlEsc(val, math=False): """Escape certain Markdown characters by HTML entities or span elements. To prevent them to be interpreted as Markdown in cases where you need them literally. Parameters ---------- val: string The input value math: boolean, optional False Whether retain TeX notation. If True, `$` is not escaped, if False, it is not escaped. """ return ( "" if val is None else ( str(val).replace("&", "&").replace("<", "<").replace("|", "|") ) if math else ( str(val) .replace("&", "&") .replace("<", "<") .replace("|", "|") .replace("$", "<span>$</span>") ) ) def mergeDict(source, overrides)-
Merge overrides into a source dictionary recursively.
Parameters
source:dict- The source dictionary, which will be modified by the overrides.
overrides:dict- The overrides, itself a dictionary.
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def mergeDict(source, overrides): """Merge overrides into a source dictionary recursively. Parameters ---------- source: dict The source dictionary, which will be modified by the overrides. overrides: dict The overrides, itself a dictionary. """ for k, v in overrides.items(): if k in source and type(source[k]) is dict: mergeDict(source[k], v) else: source[k] = v def mergeDictOfSets(d1, d2)-
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def mergeDictOfSets(d1, d2): for n, ms in d2.items(): if n in d1: d1[n] |= ms else: d1[n] = ms def nbytes(by)-
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def nbytes(by): units = ["B", "KB", "MB", "GB", "TB"] for i in range(len(units)): if by < 1024 or i == len(units) - 1: fmt = "{:>5}{}" if i == 0 else "{:>5.1f}{}" return fmt.format(by, units[i]) by /= 1024 def pandasEsc(x)-
Escapes the character that will be used as the Pandas quote char.
The escaping is realized by prepending a special char the quote char. Also: all tab characters will be replaced by single spaces.
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def pandasEsc(x): """Escapes the character that will be used as the Pandas quote char. The escaping is realized by prepending a special char the quote char. Also: all tab characters will be replaced by single spaces. """ return ( x if x == "" else str(x) .replace("\t", " ") .replace(PANDAS_QUOTE, PANDAS_ESCAPE + PANDAS_QUOTE) ) def project(iterableOfTuples, maxDimension)-
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def project(iterableOfTuples, maxDimension): if maxDimension == 1: return {r[0] for r in iterableOfTuples} return {r[0:maxDimension] for r in iterableOfTuples} def rangesFromList(nodeList)-
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def rangesFromList(nodeList): # the list must be sorted curstart = None curend = None for n in nodeList: if curstart is None: curstart = n curend = n elif n == curend + 1: curend = n else: yield (curstart, curend) curstart = n curend = n if curstart is not None: yield (curstart, curend) def rangesFromSet(nodeSet)-
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def rangesFromSet(nodeSet): # ranges = [] curstart = None curend = None for n in sorted(nodeSet): if curstart is None: curstart = n curend = n elif n == curend + 1: curend = n else: yield (curstart, curend) # ranges.append((curstart, curend)) curstart = n curend = n if curstart is not None: yield (curstart, curend) # ranges.append((curstart, curend)) # return ranges def run(cmdline, workDir=None)-
Runs a shell command and returns all relevant info.
The function runs a command line in a shell, and returns whether the command was successfull, and also what the output was, separately for standard error and standard output.
Parameters
- cmdline:
- The command line to execute.
workDir:string, optionalNone- The working directory where the command should be executed.
If
Nonethe current directory is used.
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def run(cmdline, workDir=None): """Runs a shell command and returns all relevant info. The function runs a command line in a shell, and returns whether the command was successfull, and also what the output was, separately for standard error and standard output. Parameters ---------- cmdline: The command line to execute. workDir: string, optional None The working directory where the command should be executed. If `None` the current directory is used. """ try: result = run_cmd( cmdline, shell=True, cwd=workDir, check=True, capture_output=True, ) stdOut = result.stdout.decode("utf8").strip() stdErr = result.stderr.decode("utf8").strip() good = True except CalledProcessError as e: stdOut = e.stdout.decode("utf8").strip() stdErr = e.stderr.decode("utf8").strip() good = False return (good, stdOut, stdErr) def setFromSpec(spec)-
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def setFromSpec(spec): covered = set() for r_str in spec.split(","): bounds = r_str.split("-") if len(bounds) == 1: covered.add(int(r_str)) else: b = int(bounds[0]) e = int(bounds[1]) if e < b: (b, e) = (e, b) for n in range(b, e + 1): covered.add(n) return covered def setFromStr(x)-
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def setFromStr(x): if x is None: return set() return {p for p in SEP_RE.split(x) if p} def setFromValue(x, asInt=False)-
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def setFromValue(x, asInt=False): if x is None: return set() typeX = type(x) if typeX in {set, frozenset}: return x elif typeX in {str, dict, list, tuple}: if typeX is str: x = SEP_RE.split(x) return {int(p) for p in x if p.isdecimal()} if asInt else {p for p in x if p} return {x} def specFromRanges(ranges)-
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def specFromRanges(ranges): # ranges must be normalized return ",".join( "{}".format(r[0]) if r[0] == r[1] else "{}-{}".format(*r) for r in ranges ) def specFromRangesLogical(ranges)-
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def specFromRangesLogical(ranges): # ranges must be normalized return [r[0] if r[0] == r[1] else [r[0], r[1]] for r in ranges] def tfFromValue(val)-
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def tfFromValue(val): valTp = type(val) isInt = valTp is int isStr = valTp is str if not isInt and not isStr: console(f"Wrong type for a TF value: {valTp}: {val}", error=True) return None return ( str(val) if type(val) is int else val.replace("\\", "\\\\").replace("\t", "\\t").replace("\n", "\\n") ) def tsvEsc(x)-
Escapes a double quote for strings to be included in TSV data.
Only
"and'at the beginning of the string are escaped. The escaping is realized by putting a backslash at the beginning.Expand source code Browse git
def tsvEsc(x): """Escapes a double quote for strings to be included in TSV data. Only `"` and `'` at the beginning of the string are escaped. The escaping is realized by putting a backslash at the beginning. """ s = str(x) return s if s == "" else f"\\{s}" if s[0] in {"'", '"'} else s def valueFromTf(tf)-
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def valueFromTf(tf): return "\\".join( x.replace("\\t", "\t").replace("\\n", "\n") for x in tf.split("\\\\") ) def var(envVar)-
Retrieves the value of an environment variable.
Parameters
envVar:string- The name of the environment variable.
Returns
stringorvoid- The value of the environment variable if it exists, otherwise
None.
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def var(envVar): """Retrieves the value of an environment variable. Parameters ---------- envVar: string The name of the environment variable. Returns ------- string or void The value of the environment variable if it exists, otherwise `None`. """ return os.environ.get(envVar, None) def versionSort(x)-
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def versionSort(x): parts = [] for p in x.split("."): match = NUM_ALFA_RE.match(p) (num, alfa, rest) = match.group(1, 2, 3) parts.append((int(num) if num else 0, alfa, rest)) return tuple(parts) def wrapMessages(messages)-
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def wrapMessages(messages): if type(messages) is str: messages = messages.split("\n") html = [] status = True for msg in messages: if type(msg) is tuple: (error, nl, msgRep) = msg if error: status = False match = MSG_LINE_RE.match(msgRep) msg = msgRep + ("<br>" if nl else "") clsName = "eline" if error and not match else "tline" else: match = MSG_LINE_RE.match(msg) clsName = "tline" if match else "eline" if clsName == "eline": status = False msg = msg.replace("\n", "<br>") html.append(f'<span class="{clsName.lower()}">{msg}</span>') return (status, "".join(html)) def xmlEsc(val)-
Escape certain HTML characters by XML entities.
To prevent them to be interpreted as XML in cases where you need them literally.
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def xmlEsc(val): """Escape certain HTML characters by XML entities. To prevent them to be interpreted as XML in cases where you need them literally. """ return ( "" if val is None else ( str(val) .replace("&", "&") .replace("<", "<") .replace(">", ">") .replace("'", "'") .replace('"', """) ) )