Module thunderlab.configfile
Handling of configuration parameter.
Expand source code
"""Handling of configuration parameter.
"""
import os
import sys
class ConfigFile(object):
"""Handling of configuration parameter.
Configuration parameter have a name (key), a value, a unit and a
description. New parameter can be added with the add() function.
Configuration parameter can be further structured in the
configuration file by inserting section titles via add_section().
The triple value, unit, description can be retrieved via the name
of a parameter using the [] operator.
The value of a configuration parameter is retrieved by value()
and set by set().
Values of several configuration parameter can be mapped to
new names with the map() function. The resulting dictionary can be
passed as key-word arguments to a function.
The configuration parameter can be written to a configuration file
with dump() and loaded from a file with load() and load_files().
"""
def __init__(self, orig=None):
self.cfg = {}
self.sections = dict()
self.new_section = None
if not orig is None:
for k, v in orig.cfg.items():
self.cfg[k] = list(v)
for k, v in orig.sections.items():
self.sections[k] = v
self.new_section = None
def __eq__(self, other):
"""Check whether the parameter and their values are the same.
"""
return self.cfg == other.cfg
def add(self, key, value, unit, description):
"""Add a new parameter to the configuration.
The description of the parameter is a single string. Newline
characters are intepreted as new paragraphs.
Parameters
----------
key: string
Key of the parameter.
value: any type
Value of the parameter.
unit: string
Unit of the parameter value.
description: string
Textual description of the parameter.
"""
# add a pending section:
if self.new_section is not None:
self.sections[key] = self.new_section
self.new_section = None
# add configuration parameter (4th element is default value):
self.cfg[key] = [value, unit, description, value]
def add_section(self, description):
"""Add a new section to the configuration.
Parameters
----------
description: string
Textual description of the section
"""
self.new_section = description
def __contains__(self, key):
"""Check for existence of a configuration parameter.
Parameters
----------
key: string
The name of the configuration parameter to be checked for.
Returns
-------
contains: bool
True if `key` specifies an existing configuration parameter.
"""
return key in self.cfg
def __getitem__(self, key):
"""Returns the list [value, unit, description, default]
of the configuration parameter key.
Parameters
----------
key: string
Key of the configuration parameter.
Returns
-------
value: any type
Value of the configuraion parameter.
unit: string
Unit of the configuraion parameter.
description: string
Description of the configuraion parameter.
default: any type
Default value of the configuraion parameter.
"""
return self.cfg[key]
def value(self, key):
"""Returns the value of the configuration parameter defined by key.
Parameters
----------
key: string
Key of the configuration parameter.
Returns
-------
value: any type
Value of the configuraion parameter.
"""
return self.cfg[key][0]
def set(self, key, value):
"""Set the value of the configuration parameter defined by key.
Parameters
----------
key: string
Key of the configuration parameter.
value: any type
The new value.
Raises
------
IndexError:
If key does not exist.
"""
if not key in self.cfg:
raise IndexError(f'Key {key} does not exist')
self.cfg[key][0] = value
def __delitem__(self, key):
"""Remove an entry from the configuration.
Parameters
----------
key: string
Key of the configuration parameter to be removed.
"""
if key in self.sections:
sec = self.sections.pop(key)
keys = list(self.cfg.keys())
inx = keys.index(key)+1
if inx < len(keys):
next_key = keys[inx]
if not next_key in self.sections:
self.sections[next_key] = sec
del self.cfg[key]
def map(self, mapping):
"""Map the values of the configuration onto new names.
Use this function to generate key-word arguments
that can be passed on to functions.
Parameters
----------
mapping: dict
Dictionary with its keys being the new names
and its values being the parameter names of the configuration.
Returns
-------
a: dict
A dictionary with the keys of mapping
and the corresponding values retrieved from the configuration
using the values from mapping.
"""
a = {}
for dest, src in mapping.items():
if src in self.cfg:
a[dest] = self.value(src)
return a
def write(self, stream, header=None, diff_only=False, maxline=60, comments=True):
"""Pretty print configuration into stream.
The description of a configuration parameter is printed out
right before its key-value pair with an initial comment
character ('#').
Section titles get two comment characters prependend ('##').
Lines are folded if the character count of parameter
descriptions or section title exceeds maxline.
A header can be printed initially. This is a simple string that is
formatted like the section titles.
Parameters
----------
stream:
Stream for writing the configuration.
header: string
A string that is written as an introductory comment into the file.
diff_only: bool
If true write out only those parameters whose value differs from their default.
maxline: int
Maximum number of characters that fit into a line.
comments: boolean
Print out descriptions as comments if True.
"""
def write_comment(stream, comment, maxline, cs):
# format comment:
if len(comment) > 0:
for line in comment.split('\n'):
stream.write(cs + ' ')
cc = len(cs) + 1 # character count
for w in line.strip().split(' '):
# line too long?
if cc + len(w) > maxline:
stream.write('\n' + cs + ' ')
cc = len(cs) + 1
stream.write(w + ' ')
cc += len(w) + 1
stream.write('\n')
# write header:
First = True
if comments and not header is None:
write_comment(stream, header, maxline, '##')
First = False
# get length of longest key:
maxkey = 0
for key in self.cfg.keys():
if maxkey < len(key):
maxkey = len(key)
# write out parameter:
section = ''
for key, v in self.cfg.items():
# possible section entry:
if comments and key in self.sections:
section = self.sections[key]
# get value, unit, and comment from v:
val = None
unit = ''
comment = ''
differs = False
if hasattr(v, '__len__') and (not isinstance(v, str)):
val = v[0]
if len(v) > 1 and len(v[1]) > 0:
unit = ' ' + v[1]
if len(v) > 2:
comment = v[2]
if len(v) > 3:
differs = (val != v[3])
else:
val = v
# only write parameter whose value differs:
if diff_only and not differs:
continue
# write out section
if len(section) > 0:
if not First:
stream.write('\n\n')
write_comment(stream, section, maxline, '##')
section = ''
First = False
# write key-value pair:
if comments :
stream.write('\n')
write_comment(stream, comment, maxline, '#')
stream.write('{key:<{width}s}: {val}{unit:s}\n'.format(
key=key, width=maxkey, val=val, unit=unit))
First = False
def dump(self, filename, header=None, diff_only=False, maxline=60, comments=True):
"""Pretty print configuration into file.
See write() for more details.
Parameters
----------
filename: string
Name of the file for writing the configuration.
"""
with open(filename, 'w') as f:
self.write(f, header, diff_only, maxline, comments)
def load(self, filename):
"""Set values of configuration to values from key-value pairs read in from file.
Parameters
----------
filename: string
Name of the file from which to read the configuration.
"""
with open(filename, 'r') as f:
for line in f:
# do not process empty lines and comments:
if len(line.strip()) == 0 or line[0] == '#' or not ':' in line:
continue
# parse key value pair:
key, val = line.split(':', 1)
key = key.strip()
# only read values of existing keys:
if not key in self.cfg:
continue
cv = self.cfg[key]
vals = val.strip().split(' ')
if hasattr(cv, '__len__') and (not isinstance(cv, str)):
unit = ''
if len(vals) > 1:
unit = vals[1]
if unit != cv[1]:
print(f'unit for {key} is {unit} but should be {cv[1]}')
if type(cv[0]) == bool:
cv[0] = (vals[0].lower() == 'true'
or vals[0].lower() == 'yes')
else:
try:
cv[0] = type(cv[0])(vals[0])
except ValueError:
cv[0] = vals[0]
else:
if type(cv[0]) == bool:
self.cfg[key] = (vals[0].lower() == 'true'
or vals[0].lower() == 'yes')
else:
try:
self.cfg[key] = type(cv)(vals[0])
except ValueError:
self.cfg[key] = vals[0]
def load_files(self, cfgfile, filepath, maxlevel=3, verbose=0):
"""Load configuration from current working directory
as well as from several levels of a file path.
Parameters
----------
cfgfile: string
Name of the configuration file.
filepath: string
Path of a file. Configuration files are read in from different levels
of the expanded path.
maxlevel: int
Read configuration files from up to maxlevel parent directories.
verbose: int
If greater than zero, print out from which files configuration has been loaded.
"""
# load configuration from the current directory:
if os.path.isfile(cfgfile):
if verbose > 0:
print(f'load configuration {cfgfile}')
self.load(cfgfile)
# load configuration files from higher directories:
absfilepath = os.path.abspath(filepath)
dirs = os.path.dirname(absfilepath).split(os.sep)
dirs[0] = os.sep
dirs.append('')
ml = len(dirs) - 1
if ml > maxlevel:
ml = maxlevel
for k in range(ml, 0, -1):
path = os.path.join(*(dirs[:-k] + [cfgfile]))
if os.path.isfile(path):
if verbose > 0:
print('load configuration {path}')
self.load(path)
def main():
cfg = ConfigFile()
cfg.add_section('Power spectrum:')
cfg.add('nfft', 256, '', 'Number of data poinst for fourier transform.')
cfg.add('windows', 4, '', 'Number of windows on which power spectra are computed.')
cfg.add_section('Peaks:')
cfg.add('threshold', 20.0, 'dB', 'Threshold for peak detection.')
cfg.add('deltaf', 10.0, 'Hz', 'Minimum distance between peaks.')
cfg.write(sys.stdout)
print('')
del cfg['nfft']
del cfg['windows']
cfg.write(sys.stdout)
if __name__ == "__main__":
main()Functions
def main()-
Expand source code
def main(): cfg = ConfigFile() cfg.add_section('Power spectrum:') cfg.add('nfft', 256, '', 'Number of data poinst for fourier transform.') cfg.add('windows', 4, '', 'Number of windows on which power spectra are computed.') cfg.add_section('Peaks:') cfg.add('threshold', 20.0, 'dB', 'Threshold for peak detection.') cfg.add('deltaf', 10.0, 'Hz', 'Minimum distance between peaks.') cfg.write(sys.stdout) print('') del cfg['nfft'] del cfg['windows'] cfg.write(sys.stdout)
Classes
class ConfigFile (orig=None)-
Handling of configuration parameter.
Configuration parameter have a name (key), a value, a unit and a description. New parameter can be added with the add() function.
Configuration parameter can be further structured in the configuration file by inserting section titles via add_section().
The triple value, unit, description can be retrieved via the name of a parameter using the [] operator.
The value of a configuration parameter is retrieved by value() and set by set().
Values of several configuration parameter can be mapped to new names with the map() function. The resulting dictionary can be passed as key-word arguments to a function.
The configuration parameter can be written to a configuration file with dump() and loaded from a file with load() and load_files().
Expand source code
class ConfigFile(object): """Handling of configuration parameter. Configuration parameter have a name (key), a value, a unit and a description. New parameter can be added with the add() function. Configuration parameter can be further structured in the configuration file by inserting section titles via add_section(). The triple value, unit, description can be retrieved via the name of a parameter using the [] operator. The value of a configuration parameter is retrieved by value() and set by set(). Values of several configuration parameter can be mapped to new names with the map() function. The resulting dictionary can be passed as key-word arguments to a function. The configuration parameter can be written to a configuration file with dump() and loaded from a file with load() and load_files(). """ def __init__(self, orig=None): self.cfg = {} self.sections = dict() self.new_section = None if not orig is None: for k, v in orig.cfg.items(): self.cfg[k] = list(v) for k, v in orig.sections.items(): self.sections[k] = v self.new_section = None def __eq__(self, other): """Check whether the parameter and their values are the same. """ return self.cfg == other.cfg def add(self, key, value, unit, description): """Add a new parameter to the configuration. The description of the parameter is a single string. Newline characters are intepreted as new paragraphs. Parameters ---------- key: string Key of the parameter. value: any type Value of the parameter. unit: string Unit of the parameter value. description: string Textual description of the parameter. """ # add a pending section: if self.new_section is not None: self.sections[key] = self.new_section self.new_section = None # add configuration parameter (4th element is default value): self.cfg[key] = [value, unit, description, value] def add_section(self, description): """Add a new section to the configuration. Parameters ---------- description: string Textual description of the section """ self.new_section = description def __contains__(self, key): """Check for existence of a configuration parameter. Parameters ---------- key: string The name of the configuration parameter to be checked for. Returns ------- contains: bool True if `key` specifies an existing configuration parameter. """ return key in self.cfg def __getitem__(self, key): """Returns the list [value, unit, description, default] of the configuration parameter key. Parameters ---------- key: string Key of the configuration parameter. Returns ------- value: any type Value of the configuraion parameter. unit: string Unit of the configuraion parameter. description: string Description of the configuraion parameter. default: any type Default value of the configuraion parameter. """ return self.cfg[key] def value(self, key): """Returns the value of the configuration parameter defined by key. Parameters ---------- key: string Key of the configuration parameter. Returns ------- value: any type Value of the configuraion parameter. """ return self.cfg[key][0] def set(self, key, value): """Set the value of the configuration parameter defined by key. Parameters ---------- key: string Key of the configuration parameter. value: any type The new value. Raises ------ IndexError: If key does not exist. """ if not key in self.cfg: raise IndexError(f'Key {key} does not exist') self.cfg[key][0] = value def __delitem__(self, key): """Remove an entry from the configuration. Parameters ---------- key: string Key of the configuration parameter to be removed. """ if key in self.sections: sec = self.sections.pop(key) keys = list(self.cfg.keys()) inx = keys.index(key)+1 if inx < len(keys): next_key = keys[inx] if not next_key in self.sections: self.sections[next_key] = sec del self.cfg[key] def map(self, mapping): """Map the values of the configuration onto new names. Use this function to generate key-word arguments that can be passed on to functions. Parameters ---------- mapping: dict Dictionary with its keys being the new names and its values being the parameter names of the configuration. Returns ------- a: dict A dictionary with the keys of mapping and the corresponding values retrieved from the configuration using the values from mapping. """ a = {} for dest, src in mapping.items(): if src in self.cfg: a[dest] = self.value(src) return a def write(self, stream, header=None, diff_only=False, maxline=60, comments=True): """Pretty print configuration into stream. The description of a configuration parameter is printed out right before its key-value pair with an initial comment character ('#'). Section titles get two comment characters prependend ('##'). Lines are folded if the character count of parameter descriptions or section title exceeds maxline. A header can be printed initially. This is a simple string that is formatted like the section titles. Parameters ---------- stream: Stream for writing the configuration. header: string A string that is written as an introductory comment into the file. diff_only: bool If true write out only those parameters whose value differs from their default. maxline: int Maximum number of characters that fit into a line. comments: boolean Print out descriptions as comments if True. """ def write_comment(stream, comment, maxline, cs): # format comment: if len(comment) > 0: for line in comment.split('\n'): stream.write(cs + ' ') cc = len(cs) + 1 # character count for w in line.strip().split(' '): # line too long? if cc + len(w) > maxline: stream.write('\n' + cs + ' ') cc = len(cs) + 1 stream.write(w + ' ') cc += len(w) + 1 stream.write('\n') # write header: First = True if comments and not header is None: write_comment(stream, header, maxline, '##') First = False # get length of longest key: maxkey = 0 for key in self.cfg.keys(): if maxkey < len(key): maxkey = len(key) # write out parameter: section = '' for key, v in self.cfg.items(): # possible section entry: if comments and key in self.sections: section = self.sections[key] # get value, unit, and comment from v: val = None unit = '' comment = '' differs = False if hasattr(v, '__len__') and (not isinstance(v, str)): val = v[0] if len(v) > 1 and len(v[1]) > 0: unit = ' ' + v[1] if len(v) > 2: comment = v[2] if len(v) > 3: differs = (val != v[3]) else: val = v # only write parameter whose value differs: if diff_only and not differs: continue # write out section if len(section) > 0: if not First: stream.write('\n\n') write_comment(stream, section, maxline, '##') section = '' First = False # write key-value pair: if comments : stream.write('\n') write_comment(stream, comment, maxline, '#') stream.write('{key:<{width}s}: {val}{unit:s}\n'.format( key=key, width=maxkey, val=val, unit=unit)) First = False def dump(self, filename, header=None, diff_only=False, maxline=60, comments=True): """Pretty print configuration into file. See write() for more details. Parameters ---------- filename: string Name of the file for writing the configuration. """ with open(filename, 'w') as f: self.write(f, header, diff_only, maxline, comments) def load(self, filename): """Set values of configuration to values from key-value pairs read in from file. Parameters ---------- filename: string Name of the file from which to read the configuration. """ with open(filename, 'r') as f: for line in f: # do not process empty lines and comments: if len(line.strip()) == 0 or line[0] == '#' or not ':' in line: continue # parse key value pair: key, val = line.split(':', 1) key = key.strip() # only read values of existing keys: if not key in self.cfg: continue cv = self.cfg[key] vals = val.strip().split(' ') if hasattr(cv, '__len__') and (not isinstance(cv, str)): unit = '' if len(vals) > 1: unit = vals[1] if unit != cv[1]: print(f'unit for {key} is {unit} but should be {cv[1]}') if type(cv[0]) == bool: cv[0] = (vals[0].lower() == 'true' or vals[0].lower() == 'yes') else: try: cv[0] = type(cv[0])(vals[0]) except ValueError: cv[0] = vals[0] else: if type(cv[0]) == bool: self.cfg[key] = (vals[0].lower() == 'true' or vals[0].lower() == 'yes') else: try: self.cfg[key] = type(cv)(vals[0]) except ValueError: self.cfg[key] = vals[0] def load_files(self, cfgfile, filepath, maxlevel=3, verbose=0): """Load configuration from current working directory as well as from several levels of a file path. Parameters ---------- cfgfile: string Name of the configuration file. filepath: string Path of a file. Configuration files are read in from different levels of the expanded path. maxlevel: int Read configuration files from up to maxlevel parent directories. verbose: int If greater than zero, print out from which files configuration has been loaded. """ # load configuration from the current directory: if os.path.isfile(cfgfile): if verbose > 0: print(f'load configuration {cfgfile}') self.load(cfgfile) # load configuration files from higher directories: absfilepath = os.path.abspath(filepath) dirs = os.path.dirname(absfilepath).split(os.sep) dirs[0] = os.sep dirs.append('') ml = len(dirs) - 1 if ml > maxlevel: ml = maxlevel for k in range(ml, 0, -1): path = os.path.join(*(dirs[:-k] + [cfgfile])) if os.path.isfile(path): if verbose > 0: print('load configuration {path}') self.load(path)Methods
def add(self, key, value, unit, description)-
Add a new parameter to the configuration.
The description of the parameter is a single string. Newline characters are intepreted as new paragraphs.
Parameters
key:string- Key of the parameter.
value:any type- Value of the parameter.
unit:string- Unit of the parameter value.
description:string- Textual description of the parameter.
Expand source code
def add(self, key, value, unit, description): """Add a new parameter to the configuration. The description of the parameter is a single string. Newline characters are intepreted as new paragraphs. Parameters ---------- key: string Key of the parameter. value: any type Value of the parameter. unit: string Unit of the parameter value. description: string Textual description of the parameter. """ # add a pending section: if self.new_section is not None: self.sections[key] = self.new_section self.new_section = None # add configuration parameter (4th element is default value): self.cfg[key] = [value, unit, description, value] def add_section(self, description)-
Add a new section to the configuration.
Parameters
description:string- Textual description of the section
Expand source code
def add_section(self, description): """Add a new section to the configuration. Parameters ---------- description: string Textual description of the section """ self.new_section = description def value(self, key)-
Returns the value of the configuration parameter defined by key.
Parameters
key:string- Key of the configuration parameter.
Returns
value:any type- Value of the configuraion parameter.
Expand source code
def value(self, key): """Returns the value of the configuration parameter defined by key. Parameters ---------- key: string Key of the configuration parameter. Returns ------- value: any type Value of the configuraion parameter. """ return self.cfg[key][0] def set(self, key, value)-
Set the value of the configuration parameter defined by key.
Parameters
key:string- Key of the configuration parameter.
value:any type- The new value.
Raises
Indexerror
If key does not exist.
Expand source code
def set(self, key, value): """Set the value of the configuration parameter defined by key. Parameters ---------- key: string Key of the configuration parameter. value: any type The new value. Raises ------ IndexError: If key does not exist. """ if not key in self.cfg: raise IndexError(f'Key {key} does not exist') self.cfg[key][0] = value def map(self, mapping)-
Map the values of the configuration onto new names.
Use this function to generate key-word arguments that can be passed on to functions.
Parameters
mapping:dict- Dictionary with its keys being the new names and its values being the parameter names of the configuration.
Returns
a:dict- A dictionary with the keys of mapping and the corresponding values retrieved from the configuration using the values from mapping.
Expand source code
def map(self, mapping): """Map the values of the configuration onto new names. Use this function to generate key-word arguments that can be passed on to functions. Parameters ---------- mapping: dict Dictionary with its keys being the new names and its values being the parameter names of the configuration. Returns ------- a: dict A dictionary with the keys of mapping and the corresponding values retrieved from the configuration using the values from mapping. """ a = {} for dest, src in mapping.items(): if src in self.cfg: a[dest] = self.value(src) return a def write(self, stream, header=None, diff_only=False, maxline=60, comments=True)-
Pretty print configuration into stream.
The description of a configuration parameter is printed out right before its key-value pair with an initial comment character ('#').
Section titles get two comment characters prependend ('##').
Lines are folded if the character count of parameter descriptions or section title exceeds maxline.
A header can be printed initially. This is a simple string that is formatted like the section titles.
Parameters
- stream:
- Stream for writing the configuration.
header:string- A string that is written as an introductory comment into the file.
diff_only:bool- If true write out only those parameters whose value differs from their default.
maxline:int- Maximum number of characters that fit into a line.
comments:boolean- Print out descriptions as comments if True.
Expand source code
def write(self, stream, header=None, diff_only=False, maxline=60, comments=True): """Pretty print configuration into stream. The description of a configuration parameter is printed out right before its key-value pair with an initial comment character ('#'). Section titles get two comment characters prependend ('##'). Lines are folded if the character count of parameter descriptions or section title exceeds maxline. A header can be printed initially. This is a simple string that is formatted like the section titles. Parameters ---------- stream: Stream for writing the configuration. header: string A string that is written as an introductory comment into the file. diff_only: bool If true write out only those parameters whose value differs from their default. maxline: int Maximum number of characters that fit into a line. comments: boolean Print out descriptions as comments if True. """ def write_comment(stream, comment, maxline, cs): # format comment: if len(comment) > 0: for line in comment.split('\n'): stream.write(cs + ' ') cc = len(cs) + 1 # character count for w in line.strip().split(' '): # line too long? if cc + len(w) > maxline: stream.write('\n' + cs + ' ') cc = len(cs) + 1 stream.write(w + ' ') cc += len(w) + 1 stream.write('\n') # write header: First = True if comments and not header is None: write_comment(stream, header, maxline, '##') First = False # get length of longest key: maxkey = 0 for key in self.cfg.keys(): if maxkey < len(key): maxkey = len(key) # write out parameter: section = '' for key, v in self.cfg.items(): # possible section entry: if comments and key in self.sections: section = self.sections[key] # get value, unit, and comment from v: val = None unit = '' comment = '' differs = False if hasattr(v, '__len__') and (not isinstance(v, str)): val = v[0] if len(v) > 1 and len(v[1]) > 0: unit = ' ' + v[1] if len(v) > 2: comment = v[2] if len(v) > 3: differs = (val != v[3]) else: val = v # only write parameter whose value differs: if diff_only and not differs: continue # write out section if len(section) > 0: if not First: stream.write('\n\n') write_comment(stream, section, maxline, '##') section = '' First = False # write key-value pair: if comments : stream.write('\n') write_comment(stream, comment, maxline, '#') stream.write('{key:<{width}s}: {val}{unit:s}\n'.format( key=key, width=maxkey, val=val, unit=unit)) First = False def dump(self, filename, header=None, diff_only=False, maxline=60, comments=True)-
Pretty print configuration into file.
See write() for more details.
Parameters
filename:string- Name of the file for writing the configuration.
Expand source code
def dump(self, filename, header=None, diff_only=False, maxline=60, comments=True): """Pretty print configuration into file. See write() for more details. Parameters ---------- filename: string Name of the file for writing the configuration. """ with open(filename, 'w') as f: self.write(f, header, diff_only, maxline, comments) def load(self, filename)-
Set values of configuration to values from key-value pairs read in from file.
Parameters
filename:string- Name of the file from which to read the configuration.
Expand source code
def load(self, filename): """Set values of configuration to values from key-value pairs read in from file. Parameters ---------- filename: string Name of the file from which to read the configuration. """ with open(filename, 'r') as f: for line in f: # do not process empty lines and comments: if len(line.strip()) == 0 or line[0] == '#' or not ':' in line: continue # parse key value pair: key, val = line.split(':', 1) key = key.strip() # only read values of existing keys: if not key in self.cfg: continue cv = self.cfg[key] vals = val.strip().split(' ') if hasattr(cv, '__len__') and (not isinstance(cv, str)): unit = '' if len(vals) > 1: unit = vals[1] if unit != cv[1]: print(f'unit for {key} is {unit} but should be {cv[1]}') if type(cv[0]) == bool: cv[0] = (vals[0].lower() == 'true' or vals[0].lower() == 'yes') else: try: cv[0] = type(cv[0])(vals[0]) except ValueError: cv[0] = vals[0] else: if type(cv[0]) == bool: self.cfg[key] = (vals[0].lower() == 'true' or vals[0].lower() == 'yes') else: try: self.cfg[key] = type(cv)(vals[0]) except ValueError: self.cfg[key] = vals[0] def load_files(self, cfgfile, filepath, maxlevel=3, verbose=0)-
Load configuration from current working directory as well as from several levels of a file path.
Parameters
cfgfile:string- Name of the configuration file.
filepath:string- Path of a file. Configuration files are read in from different levels of the expanded path.
maxlevel:int- Read configuration files from up to maxlevel parent directories.
verbose:int- If greater than zero, print out from which files configuration has been loaded.
Expand source code
def load_files(self, cfgfile, filepath, maxlevel=3, verbose=0): """Load configuration from current working directory as well as from several levels of a file path. Parameters ---------- cfgfile: string Name of the configuration file. filepath: string Path of a file. Configuration files are read in from different levels of the expanded path. maxlevel: int Read configuration files from up to maxlevel parent directories. verbose: int If greater than zero, print out from which files configuration has been loaded. """ # load configuration from the current directory: if os.path.isfile(cfgfile): if verbose > 0: print(f'load configuration {cfgfile}') self.load(cfgfile) # load configuration files from higher directories: absfilepath = os.path.abspath(filepath) dirs = os.path.dirname(absfilepath).split(os.sep) dirs[0] = os.sep dirs.append('') ml = len(dirs) - 1 if ml > maxlevel: ml = maxlevel for k in range(ml, 0, -1): path = os.path.join(*(dirs[:-k] + [cfgfile])) if os.path.isfile(path): if verbose > 0: print('load configuration {path}') self.load(path)