7.8. class BigReport:
The class for the whole application
The BigReport class is a
container for all the information we need to produce the
report. Its constructor takes the name of a directory,
walks that directory subtree, and records all the file
information. Its .genFiles()
method is used to extract the resulting report in the
desired order. Here is its interface:
bigfiles.py
# - - - - - c l a s s B i g R e p o r t - - - - -
class BigReport:
"""Holds the big-files report.
Exports:
BigReport ( dir ):
[ dir is a string ->
if dir names a directory to which we have access ->
return a BigReport object describing all the
accessible files in that directory's subtree
else -> raise OSError ]
.genFiles():
[ generate a sequence of BigInfo objects representing
the files in self, in descending order by file size,
with the path name as a secondary key ]
Class invariants:
.__bigList:
[ a list of information on all the files in self
as BigInfo objects, sorted ]
"""
