# eric4.Utilities.__init__

Package implementing various functions/classes needed everywhere within eric4.

### Global Attributes

_escape
_escape_map
_uescape
coding_regexps
configDir
supportedCodecs

### Classes

CodingError | Class implementing an exception, which is raised, if a given coding is incorrect.

### Functions

__showwarning | Module function to raise a SyntaxError for a SyntaxWarning.
_percentReplacementFunc | Protected function called for replacing % codes.
checkBlacklistedVersions | Module functions to check for blacklisted versions of the prerequisites.
compactPath | Function to return a compacted path fitting inside the given width.
compile | Function to compile one Python source file to Python bytecode.
convertLineEnds | Function to convert the end of line characters.
decode | Function to decode a text.
decodeBytes | Function to decode some text into a unicode string.
decodeWithHash | Function to decode a text and calculate the MD5 hash.
direntries | Function returning a list of all files and directories.
encode | Function to encode a text.
escape_entities | Function to encode html entities.
escape_uentities | Function to encode html entities.
fromNativeSeparators | Function returning a path, that is using "/" separator characters.
generateDistroInfo | Module function to generate a string with distribution infos.
generatePluginsVersionInfo | Module function to generate a string with plugins version infos.
generatePySideToolPath | Module function to generate the executable path for a PySide tool.
generateQtToolName | Module function to generate the executable name for a Qt tool like designer.
generateVersionInfo | Module function to generate a string with various version infos.
getConfigDir | Module function to get the name of the directory storing the config data.
getDirs | Function returning a list of all directories below path.
getEnvironmentEntry | Module function to get an environment entry.
getExecutablePath | Function to build the full path of an executable file from the environment.
getHomeDir | Function to get a users home directory
getPercentReplacement | Function to get the replacement for code.
getPercentReplacementHelp | Function to get the help text for the supported %-codes.
getPythonLibPath | Function to determine the path to Python's library.
getPythonVersion | Function to get the Python version (major, minor) as an integer value.
getQtMacBundle | Module function to determine the correct Mac OS X bundle name for Qt tools.
getTestFileName | Function to build the filename of a unittest file.
getUserName | Function to get the user name.
get_coding | Function to get the coding of a text.
hasEnvironmentEntry | Module function to check, if the environment contains an entry.
html_encode | Function to correctly encode a text for html.
html_uencode | Function to correctly encode a unicode text for html.
isExecutable | Function to check, if a file is executable.
isinpath | Function to check for an executable file.
joinext | Function to join a file extension to a path.
linesep | Function to return the lineseparator used by the editor.
normabsjoinpath | Function returning a normalized, absolute path of the joined parts passed into it.
normabspath | Function returning a normalized, absolute path.
normcaseabspath | Function returning an absolute path, that is normalized with respect to its case and references.
normcasepath | Function returning a path, that is normalized with respect to its case and references.
normjoinpath | Function returning a normalized path of the joined parts passed into it.
parseEnvironmentString | Function used to convert an environment string into a list of environment settings.
parseOptionString | Function used to convert an option string into a list of options.
parseString | Function used to convert a string into a list.
posix_GetUserName | Function to get the user name under Posix systems.
prepareQtMacBundle | Module function for starting Qt tools that are Mac OS X bundles.
pwDecode | Module function to decode a password.
pwEncode | Module function to encode a password.
readEncodedFile | Function to read a file and decode its contents into proper text.
relpath | Return a relative version of a path.
samepath | Function to compare two paths.
setConfigDir | Module function to set the name of the directory storing the config data.
splitPath | Function to split a pathname into a directory part and a file part.
toNativeSeparators | Function returning a path, that is using native separator characters.
toUnicode | Public method to convert a string to unicode.
win32_GetUserName | Function to get the user name under Win32.
win32_Kill | Function to provide an os.kill equivalent for Win32.
writeEncodedFile | Function to write a file with properly encoded text.

## CodingError

Class implementing an exception, which is raised, if a given coding is incorrect.

### Derived from

Exception

### Class Attributes

None

### Class Methods

None

### Methods

CodingError | Constructor
__repr__ | Private method returning a representation of the exception.
__str__ | Private method returning a string representation of the exception.

### Static Methods

None

#### CodingError (Constructor)

CodingError(coding)

Constructor

#### CodingError.__repr__

__repr__()

Private method returning a representation of the exception.

Returns:
  string representing the error message

#### CodingError.__str__

__str__()

Private method returning a string representation of the exception.

Returns:
  string representing the error message

Up

## __showwarning

__showwarning(message, category, filename, lineno, file = None, line = "")

Module function to raise a SyntaxError for a SyntaxWarning.

message
  warning object
category
  type object of the warning
filename
  name of the file causing the warning (string)
lineno
  line number causing the warning (integer)
file
  file to write the warning message to (ignored)
line
  line causing the warning (ignored)

Raises SyntaxError:

Up

## _percentReplacementFunc

_percentReplacementFunc(matchobj)

Protected function called for replacing % codes.

matchobj
  matchobject for the code

Returns:
  replacement string

Up

## checkBlacklistedVersions

checkBlacklistedVersions()

Module functions to check for blacklisted versions of the prerequisites.

Returns:
  flag indicating good versions were found (boolean)

Up

## compactPath

compactPath(path, width, measure = len)

Function to return a compacted path fitting inside the given width.

path
  path to be compacted (string)
width
  width for the compacted path (integer)
measure
  reference to a function used to measure the length of the string

Returns:
  compacted path (string)

Up

## compile

compile(file, codestring = "")

Function to compile one Python source file to Python bytecode.

file
  source filename (string)
codestring
  string containing the code to compile (string)

Returns:
  A tuple indicating status (1 = an error was found), the filename, the linenumber, the index number, the code string and the error message (boolean, string, string, string, string, string). The values are only valid, if the status equals 1.

Up

## convertLineEnds

convertLineEnds(text, eol)

Function to convert the end of line characters.

text
  text to be converted (string)
eol
  new eol setting (string)

Returns:
  text with converted eols (string)

Up

## decode

decode(text)

Function to decode a text.

text
  text to decode (string)

Returns:
  decoded text and encoding

Up

## decodeBytes

decodeBytes(buffer)

Function to decode some text into a unicode string.

buffer
  string buffer to decode (string)

Returns:
  decoded text (unicode)

Up

## decodeWithHash

decodeWithHash(text)

Function to decode a text and calculate the MD5 hash.

text
  text to decode (string)

Returns:
  decoded text, encoding and MD5 hash

Up

## direntries

direntries(path, filesonly=False, pattern=None, followsymlinks=True, checkStop=None)

Function returning a list of all files and directories.

path
  root of the tree to check
filesonly
  flag indicating that only files are wanted
pattern
  a filename pattern to check against
followsymlinks
  flag indicating whether symbolic links should be followed
checkStop
  function to be called to check for a stop

Returns:
  list of all files and directories in the tree rooted at path. The names are expanded to start with path.

Up

## encode

encode(text, orig_coding)

Function to encode a text.

text
  text to encode (string)
orig_coding
  type of the original coding (string)

Returns:
  encoded text and encoding

Up

## escape_entities

escape_entities(m, map=_escape_map)

Function to encode html entities.

m
  the match object
map
  the map of entities to encode

Returns:
  the converted text (string)

Up

## escape_uentities

escape_uentities(m)

Function to encode html entities.

m
  the match object

Returns:
  the converted text (string)

Up

## fromNativeSeparators

fromNativeSeparators(path)

Function returning a path, that is using "/" separator characters.

path
  path to be converted (QString)

Returns:
  path with converted separator characters (QString)

Up

## generateDistroInfo

generateDistroInfo(linesep = '\n')

Module function to generate a string with distribution infos.

linesep
  string to be used to separate lines (string)

Returns:
  string with plugins version infos (string)

Up

## generatePluginsVersionInfo

generatePluginsVersionInfo(linesep = '\n')

Module function to generate a string with plugins version infos.

linesep
  string to be used to separate lines (string)

Returns:
  string with plugins version infos (string)

Up

## generatePySideToolPath

generatePySideToolPath(toolname)

Module function to generate the executable path for a PySide tool.

toolname
  base name of the tool (string or QString)

Returns:
  the PySide tool path with extension (string)

Up

## generateQtToolName

generateQtToolName(toolname)

Module function to generate the executable name for a Qt tool like designer.

toolname
  base name of the tool (string or QString)

Returns:
  the Qt tool name without extension (string)

Up

## generateVersionInfo

generateVersionInfo(linesep = '\n')

Module function to generate a string with various version infos.

linesep
  string to be used to separate lines (string)

Returns:
  string with version infos (string)

Up

## getConfigDir

getConfigDir()

Module function to get the name of the directory storing the config data.

Returns:
  directory name of the config dir (string)

Up

## getDirs

getDirs(path, excludeDirs)

Function returning a list of all directories below path.

path
  root of the tree to check
excludeDirs
  basename of directories to ignore

Returns:
  list of all directories found

Up

## getEnvironmentEntry

getEnvironmentEntry(key, default = None)

Module function to get an environment entry.

key
  key of the requested environment entry (string)
default
  value to be returned, if the environment doesn't contain the requested entry (string)

Returns:
  the requested entry or the default value, if the entry wasn't found (string or None)

Up

## getExecutablePath

getExecutablePath(file)

Function to build the full path of an executable file from the environment.

file
  filename of the executable to check (string)

Returns:
  full executable name, if the executable file is accessible via the searchpath defined by the PATH environment variable, or an empty string otherwise.

Up

## getHomeDir

getHomeDir()

Function to get a users home directory

Returns:
  home directory (string)

Up

## getPercentReplacement

getPercentReplacement(code)

Function to get the replacement for code.

code
  code indicator (string or QString)

Returns:
  replacement string (string)

Up

## getPercentReplacementHelp

getPercentReplacementHelp()

Function to get the help text for the supported %-codes.

Returns:
  help text (QString)

Up

## getPythonLibPath

getPythonLibPath()

Function to determine the path to Python's library.

Returns:
  path to the Python library (string)

Up

## getPythonVersion

getPythonVersion()

Function to get the Python version (major, minor) as an integer value.

Returns:
  An integer representing major and minor version number (integer)

Up

## getQtMacBundle

getQtMacBundle(toolname)

Module function to determine the correct Mac OS X bundle name for Qt tools.

toolname
  plain name of the tool (e.g. "designer") (string or QString)

Returns:
  bundle name of the Qt tool (string)

Up

## getTestFileName

getTestFileName(fn)

Function to build the filename of a unittest file.

The filename for the unittest file is built by prepending the string "test" to the filename passed into this function.

fn
  filename basis to be used for the unittest filename (string)

Returns:
  filename of the corresponding unittest file (string)

Up

## getUserName

getUserName()

Function to get the user name.

Returns:
  user name (string)

Up

## get_coding

get_coding(text)

Function to get the coding of a text.

text
  text to inspect (string)

Returns:
  coding string

Up

## hasEnvironmentEntry

hasEnvironmentEntry(key)

Module function to check, if the environment contains an entry.

key
  key of the requested environment entry (string)

Returns:
  flag indicating the presence of the requested entry (boolean)

Up

## html_encode

html_encode(text, pattern=_escape)

Function to correctly encode a text for html.

text
  text to be encoded (string)
pattern
  search pattern for text to be encoded (string)

Returns:
  the encoded text (string)

Up

## html_uencode

html_uencode(text, pattern=_uescape)

Function to correctly encode a unicode text for html.

text
  text to be encoded (string)
pattern
  search pattern for text to be encoded (string)

Returns:
  the encoded text (string)

Up

## isExecutable

isExecutable(exe)

Function to check, if a file is executable.

exe
  filename of the executable to check (string)

Returns:
  flag indicating executable status (boolean)

Up

## isinpath

isinpath(file)

Function to check for an executable file.

file
  filename of the executable to check (string)

Returns:
  flag to indicate, if the executable file is accessible via the searchpath defined by the PATH environment variable.

Up

## joinext

joinext(prefix, ext)

Function to join a file extension to a path.

The leading "." of ext is replaced by a platform specific extension separator if necessary.

prefix
  the basepart of the filename (string)
ext
  the extension part (string)

Returns:
  the complete filename (string)

Up

## linesep

linesep()

Function to return the lineseparator used by the editor.

Returns:
  line separator used by the editor (string)

Up

## normabsjoinpath

normabsjoinpath(a, *p)

Function returning a normalized, absolute path of the joined parts passed into it.

a
  first path to be joined (string)
p
  variable number of path parts to be joind (string)

Returns:
  absolute, normalized path (string)

Up

## normabspath

normabspath(path)

Function returning a normalized, absolute path.

path
  file path (string)

Returns:
  absolute, normalized path (string)

Up

## normcaseabspath

normcaseabspath(path)

Function returning an absolute path, that is normalized with respect to its case and references.

path
  file path (string)

Returns:
  absolute, normalized path (string)

Up

## normcasepath

normcasepath(path)

Function returning a path, that is normalized with respect to its case and references.

path
  file path (string)

Returns:
  case normalized path (string)

Up

## normjoinpath

normjoinpath(a, *p)

Function returning a normalized path of the joined parts passed into it.

a
  first path to be joined (string)
p
  variable number of path parts to be joind (string)

Returns:
  normalized path (string)

Up

## parseEnvironmentString

parseEnvironmentString(s)

Function used to convert an environment string into a list of environment settings.

s
  environment string (string or QString)

Returns:
  list of environment settings (list of strings)

Up

## parseOptionString

parseOptionString(s)

Function used to convert an option string into a list of options.

s
  option string (string or QString)

Returns:
  list of options (list of strings)

Up

## parseString

parseString(s, rx)

Function used to convert a string into a list.

s
  string to be parsed (string or QString)
rx
  regex defining the parse pattern (QRegExp)

Returns:
  list of parsed data (list of strings)

Up

## posix_GetUserName

posix_GetUserName()

Function to get the user name under Posix systems.

Returns:
  user name (string)

Up

## prepareQtMacBundle

prepareQtMacBundle(toolname, version, args)

Module function for starting Qt tools that are Mac OS X bundles.

toolname
  plain name of the tool (e.g. "designer") (string or QString)
version
  indication for the requested version (Qt 4) (integer)
args
  name of input file for tool, if any (QStringList)

Returns:
  command-name and args for QProcess (tuple)

Up

## pwDecode

pwDecode(epw)

Module function to decode a password.

pw
  encoded password to decode (string or QString)

Returns:
  decoded password (string)

Up

## pwEncode

pwEncode(pw)

Module function to encode a password.

pw
  password to encode (string or QString)

Returns:
  encoded password (string)

Up

## readEncodedFile

readEncodedFile(filename)

Function to read a file and decode its contents into proper text.

filename
  name of the file to read (string)

Returns:
  tuple of decoded text and encoding (string, string)

Up

## relpath

relpath(path, start = os.path.curdir)

Return a relative version of a path.

path
  path to make relative (string)
start
  path to make relative from (string)

Up

## samepath

samepath(f1, f2)

Function to compare two paths.

f1
  first path for the compare (string)
f2
  second path for the compare (string)

Returns:
  flag indicating whether the two paths represent the same path on disk.

Up

## setConfigDir

setConfigDir(d)

Module function to set the name of the directory storing the config data.

d
  name of an existing directory (string)

Up

## splitPath

splitPath(name)

Function to split a pathname into a directory part and a file part.

name
  path name (string or QString)

Returns:
  a tuple of 2 strings (dirname, filename).

Up

## toNativeSeparators

toNativeSeparators(path)

Function returning a path, that is using native separator characters.

path
  path to be converted (QString)

Returns:
  path with converted separator characters (QString)

Up

## toUnicode

toUnicode(s)

Public method to convert a string to unicode.

If the passed in string is of type QString, it is simply returned unaltered, assuming, that it is already a unicode string. For all other strings, various codes are tried until one converts the string without an error. If all codecs fail, the string is returned unaltered.

s
  string to be converted (string or QString)

Returns:
  converted string (unicode or QString)

Up

## win32_GetUserName

win32_GetUserName()

Function to get the user name under Win32.

Returns:
  user name (string)

Up

## win32_Kill

win32_Kill(pid)

Function to provide an os.kill equivalent for Win32.

pid
  process id

Up

## writeEncodedFile

writeEncodedFile(filename, text, orig_coding)

Function to write a file with properly encoded text.

filename
  name of the file to read (string)
text
  text to be written (string)
orig_coding
  type of the original encoding (string)

Returns:
  encoding used for writing the file (string)

Up