SubsamplingInfoPathManager

class PlasmaCalcs.dimensions.subsampling.SubsamplingInfoPathManager(info_dir, *, make=True, exist_ok=True)

Bases: dict

class that helps manage subsampling info paths.

info_dir: str

path to subsampling_info directory. Internally will be converted to abspath.

All paths will be stored internally as abspaths.

info_dir: subsampling_info

info_txt: subsampling_info/subsampling_info.txt

info_meta: subsampling_info/subsampling_meta.txt

subclasses might add other paths too.

Note: self.basename(key) aliases to os.path.basename(self[key]).

make: whether to create the ‘subsampling_info’ folder if it doesn’t exist yet.

exist_ok: if False and any folders to make already exist, crash instead.

Methods

assert_does_not_exist(key)
assert_exists(key)
assert_isdir(key)
assert_isfile(key)
basename(key)	returns os.path.basename(self[key])
clear()
copy()
exists(key)	returns os.path.exists(self[key])
fromkeys([value])	Create a new dictionary with keys from iterable and values set to value.
get(key[, default])	Return the value for key if key is in the dictionary, else default.
implied([file_or_dir, dir, make])	returns SubsamplingInfoPathManager implied from path information or current directory.
init_path_strings()	initialize all path strings.
isdir(key)	returns os.path.isdir(self[key])
isfile(key)	returns os.path.isfile(self[key])
items()
keys()
make_paths()	create paths for all keys in self.keys_to_make_paths, if the paths don't exist already.
pop(k[,d])	If key is not found, default is returned if given, otherwise KeyError is raised
popitem()	Remove and return a (key, value) pair as a 2-tuple.
setdefault(key[, default])	Insert key with a value of default if key is not in the dictionary.
update([E, ]**F)	If E is present and has a .keys() method, then does: for k in E: D[k] = E[k]
values()

Attributes

basename_info_dir
basename_info_meta
basename_info_txt
keys_to_make_paths

basename(key)

returns os.path.basename(self[key])

clear() → None.  Remove all items from D.

copy() → a shallow copy of D

exists(key)

returns os.path.exists(self[key])

fromkeys(value=None, /)

Create a new dictionary with keys from iterable and values set to value.

get(key, default=None, /)

Return the value for key if key is in the dictionary, else default.

classmethod implied(file_or_dir=None, *, dir=None, make=None, **kw)

returns SubsamplingInfoPathManager implied from path information or current directory.

file_or_dir: None or str

None –> look within current directory (or use dir if dir is provided)

directory –> info_dir = here if ‘subsampling_info.txt’ contained within it,

else look for ‘subsampling_info’ directory to use as info_dir.

file –> if ‘subsampling_info.txt’, use info_dir = directory containing file.

dir: None or str

‘subsampling_info’ –> info_dir = dir

any other str –> info_dir = dir/subsampling_info

Cannot provide dir AND file_or_dir.

make: None or bool

None –> use True if dir is provided, else False.

(use cls.basename_info_txt and cls.basename_info_dir instead of ‘subsampling_info.txt’ and ‘subsampling_info’.)

init_path_strings()

initialize all path strings. See help(self) for details.

isdir(key)

returns os.path.isdir(self[key])

isfile(key)

returns os.path.isfile(self[key])

items() → a set-like object providing a view on D's items

keys() → a set-like object providing a view on D's keys

make_paths()

create paths for all keys in self.keys_to_make_paths, if the paths don’t exist already.

if any paths existed already but not self.exist_ok, crash before making any of them!

pop(k[, d]) → v, remove specified key and return the corresponding value.

If key is not found, default is returned if given, otherwise KeyError is raised

popitem()

Remove and return a (key, value) pair as a 2-tuple.

Pairs are returned in LIFO (last-in, first-out) order.

Raises KeyError if the dict is empty.

setdefault(key, default=None, /)

Insert key with a value of default if key is not in the dictionary.

Return the value for key if key is in the dictionary, else default.

update([E, ]**F) → None.  Update D from dict/iterable E and F.

If E is present and has a .keys() method, then does: for k in E: D[k] = E[k]

If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v

In either case, this is followed by: for k in F: D[k] = F[k]

values() → an object providing a view on D's values