finish FileStringProperty

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
This commit is contained in:
Steven Armstrong 2011-10-11 09:38:03 +02:00
parent a1e1c8d665
commit 005009ab5d

View file

@ -271,9 +271,9 @@ class FileBooleanProperty(object):
def __delete__(self, obj):
raise AttributeError("can't delete attribute")
# FIXME: should have same anchestor as FileList
class FileStringProperty(object):
"""A string property which stores its state in a file.
"""A string property which stores its value in a file.
"""
def __init__(self, path):
"""
@ -307,15 +307,21 @@ class FileStringProperty(object):
value = ""
try:
with open(path, "r") as fd:
value = fd.read().rstrip('\n')
value = fd.read()
except EnvironmentError:
pass
return value
def __set__(self, obj, value):
path = self._get_path(obj)
with open(path, "w") as fd:
fd.write(str(value))
if value:
with open(path, "w") as fd:
fd.write(str(value))
else:
try:
os.unlink(path)
except EnvironmentError:
pass
def __delete__(self, obj):
raise AttributeError("can't delete attribute")
raise AttributeError("Can't delete attribute. Set it's value to an empty string to remove the underlying file.")