Python meta object question
Mickael Remond
mikl at linux-france.org
Mon Nov 29 14:12:37 EST 1999
Hello,
Is there a way to automatically update the class tree to show the change
in inherited class attributes after a class redefinition ?
Look at this example:
----------------------------------------
# Step one
# First description
class company1:
company = "Company1"
class company2:
company = "Company2"
class localcompany(company1):
localcompany = "STE France"
class employee(localcompany):
employee = "Me"
print
print "Step 1:"
print localcompany.company # => Company1
print employee.company # => Company1
# Step two
# localcompany is sold to company2
class localcompany(company2):
localcompany="New STE France"
print
print "Step 2:"
print localcompany.company # => Company2
print employee.company # => Company1 (outdated!)
# Step three
# Force employee class update (same class definition)
class employee(localcompany):
employee = "Me"
print
print "Step 3:"
print localcompany.company # => Company2
print employee.company # => Company2
-------------------------------------------------------------
This case is very simple but when the class tree becomes complicated it
is difficult to keep all class up to date.
Is there a way to redefined only one class, as in step 2 and have all
the other class automatically take this change into account ?
Thank you in advance for your help.
Mickael Remond
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