Enum class with ToString functionality

[bg_ie]

Hi,

I have the following class -

class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

plus the following code -

testResult = TestOutcomes.PA SSED

testResultAsStr ing
if testResult == TestOutcomes.PA SSED:
testResultAsStr ing = "Passed"
elif testResult == TestOutcomes.FA ILED :
testResultAsStr ing = "Failed"
else:
testResultAsStr ing = "Aborted"

But it would be much nicer if I had a function to covert to string as
part of the TestOutcomes class. How would I implement this?

Thanks,

Barry

[Duncan Booth]

bg***@yahoo.com wrote:

But it would be much nicer if I had a function to covert to string as
part of the TestOutcomes class. How would I implement this?

Perhaps: http://aspn.activestate.com/ASPN/Coo.../Recipe/413486

[David]

On 9/10/07, bg***@yahoo.com <bg***@yahoo.co mwrote:

Hi,

I have the following class -

class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

plus the following code -

testResult = TestOutcomes.PA SSED

testResultAsStr ing
if testResult == TestOutcomes.PA SSED:
testResultAsStr ing = "Passed"
elif testResult == TestOutcomes.FA ILED :
testResultAsStr ing = "Failed"
else:
testResultAsStr ing = "Aborted"

But it would be much nicer if I had a function to covert to string as
part of the TestOutcomes class. How would I implement this?

You can use reflection to do this. Perhaps a constructor that goes
through your class dict (dir(self)) and builds an int->string mapping
property based on the value and name of the attributes (perhaps just
the ones whose type is int). To get the exact same result as your code
above you can capitalize the first letter of the attribute name, and
lowercase the rest.

[TheFlyingDutchman]

On Sep 10, 2:28 am, [e-mail] wrote:

Hi,

I have the following class -

class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

plus the following code -

testResult = TestOutcomes.PA SSED

testResultAsStr ing
if testResult == TestOutcomes.PA SSED:
testResultAsStr ing = "Passed"
elif testResult == TestOutcomes.FA ILED :
testResultAsStr ing = "Failed"
else:
testResultAsStr ing = "Aborted"

But it would be much nicer if I had a function to covert to string as
part of the TestOutcomes class. How would I implement this?

Thanks,

Barry

The equivalent to Java's toString() is __str__() in Python:

class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

def __init__(self,o utcome):
self.outcome = outcome

def __str__(self):
if self.outcome == TestOutcomes.PA SSED:
return "Passed"
elif self.outcome == TestOutcomes.FA ILED :
return "Failed"
else:
return "Aborted"

if __name__ == "__main__":
testResult = TestOutcomes(Te stOutcomes.ABOR TED)
print testResult
testResult = TestOutcomes(Te stOutcomes.FAIL ED)
a = testResult.__st r__()
print a

Aborted
Failed

[aine_canby]

On 10 Sep, 13:35, TheFlyingDutchm an <zzbba...@aol.c omwrote:

On Sep 10, 2:28 am, [e-mail] wrote:

Hi,

I have the following class -

class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

plus the following code -

testResult = TestOutcomes.PA SSED

testResultAsStr ing
if testResult == TestOutcomes.PA SSED:
testResultAsStr ing = "Passed"
elif testResult == TestOutcomes.FA ILED :
testResultAsStr ing = "Failed"
else:
testResultAsStr ing = "Aborted"

But it would be much nicer if I had a function to covert to string as
part of the TestOutcomes class. How would I implement this?

Thanks,

Barry

The equivalent to Java's toString() is __str__() in Python:

class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

def __init__(self,o utcome):
self.outcome = outcome

def __str__(self):
if self.outcome == TestOutcomes.PA SSED:
return "Passed"
elif self.outcome == TestOutcomes.FA ILED :
return "Failed"
else:
return "Aborted"

if __name__ == "__main__":
testResult = TestOutcomes(Te stOutcomes.ABOR TED)
print testResult
testResult = TestOutcomes(Te stOutcomes.FAIL ED)
a = testResult.__st r__()
print a

Aborted
Failed- Dölj citerad text -

- Visa citerad text -

Would this be crazy? -

class TestOutcomes:
PASSED = "PASSED"
FAILED = "FAILED"
ABORTED = "ABORTED"

[TheFlyingDutchman]

On Sep 10, 2:28 am, [e-mail] wrote:

Hi,

I have the following class -

class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

plus the following code -

testResult = TestOutcomes.PA SSED

testResultAsStr ing
if testResult == TestOutcomes.PA SSED:
testResultAsStr ing = "Passed"
elif testResult == TestOutcomes.FA ILED :
testResultAsStr ing = "Failed"
else:
testResultAsStr ing = "Aborted"

But it would be much nicer if I had a function to covert to string as
part of the TestOutcomes class. How would I implement this?

Thanks,

Barry

class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

def ToString(outcom e):
if outcome == TestOutcomes.PA SSED:
return "Passed"
elif outcome == TestOutcomes.FA ILED :
return "Failed"
else:
return "Aborted"

ToString = staticmethod(To String)

if __name__ == "__main__":
testResult = TestOutcomes.PA SSED
testResultAsStr ing = TestOutcomes.To String(testResu lt)
print testResultAsStr ing
print TestOutcomes.To String(testResu lt)
Passed
Passed

[Bjoern Schliessmann]

bg***@yahoo.com wrote:

I have the following class -

class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

plus the following code -

testResult = TestOutcomes.PA SSED

testResultAsStr ing
if testResult == TestOutcomes.PA SSED:
testResultAsStr ing = "Passed"
elif testResult == TestOutcomes.FA ILED :
testResultAsStr ing = "Failed"
else:
testResultAsStr ing = "Aborted"

But it would be much nicer if I had a function to covert to string
as part of the TestOutcomes class. How would I implement this?

Why don't use the simple approach like this?

TEST_PASSED = "Passed"
TEST_FAILED = "Failed"
TEST_ABORTED = "Aborted"

In Python, no one forces you to put everything in classes.

If you are determined to use the class approach, use the __str__
method. It's called when you do str(instance).

Regards,
Björn

--
BOFH excuse #122:

because Bill Gates is a Jehovah's witness and so nothing can work on
St. Swithin's day.

[Bruno Desthuilliers]

TheFlyingDutchm an a écrit :

On Sep 10, 2:28 am, [e-mail] wrote:

>>Hi,

I have the following class -

class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

plus the following code -

testResult = TestOutcomes.PA SSED

testResultAsS tring
if testResult == TestOutcomes.PA SSED:
testResultAsStr ing = "Passed"
elif testResult == TestOutcomes.FA ILED :
testResultAsStr ing = "Failed"
else:
testResultAsStr ing = "Aborted"

But it would be much nicer if I had a function to covert to string as
part of the TestOutcomes class. How would I implement this?

Thanks,

Barry

class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

def ToString(outcom e):
if outcome == TestOutcomes.PA SSED:
return "Passed"
elif outcome == TestOutcomes.FA ILED :
return "Failed"
else:
return "Aborted"

ToString = staticmethod(To String)

if __name__ == "__main__":
testResult = TestOutcomes.PA SSED
testResultAsStr ing = TestOutcomes.To String(testResu lt)
print testResultAsStr ing
print TestOutcomes.To String(testResu lt)

Technically correct, but totally unpythonic.

May I suggest some reading ?
http://dirtsimple.org/2004/12/python-is-not-java.html

[TheFlyingDutchman]

On Sep 8, 9:52 am, Bruno Desthuilliers
<bdesth.quelque [e-mail] quepart.frwrote :

TheFlyingDutchm an a écrit :

On Sep 10, 2:28 am, [e-mail] wrote:

>Hi,

>I have the following class -

>class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

>plus the following code -

>testResult = TestOutcomes.PA SSED

>testResultAsSt ring
if testResult == TestOutcomes.PA SSED:
testResultAsStr ing = "Passed"
elif testResult == TestOutcomes.FA ILED :
testResultAsStr ing = "Failed"
else:
testResultAsStr ing = "Aborted"

>But it would be much nicer if I had a function to covert to string as
part of the TestOutcomes class. How would I implement this?

>Thanks,

>Barry

class TestOutcomes:
PASSED = 0
FAILED = 1
ABORTED = 2

def ToString(outcom e):
if outcome == TestOutcomes.PA SSED:
return "Passed"
elif outcome == TestOutcomes.FA ILED :
return "Failed"
else:
return "Aborted"

ToString = staticmethod(To String)

if __name__ == "__main__":
testResult = TestOutcomes.PA SSED
testResultAsStr ing = TestOutcomes.To String(testResu lt)
print testResultAsStr ing
print TestOutcomes.To String(testResu lt)

Technically correct, but totally unpythonic.

Speaking of unpythonic, I would call

ToString = staticmethod(To String)

A Perlific syntax.

>
May I suggest some reading ?http://dirtsimple.org/2004/12/python-is-not-java.html

Well the Foo.Foo complaint is bogus:

from Foo import Foo

[Ben Finney]

bg***@yahoo.com writes:

But it would be much nicer if I had a function to covert to string
as part of the TestOutcomes class. How would I implement this?

Others have given ad hoc implementations that may do what you want.

I'd like to know if the Cheeseshop package 'enum' is useful to
you. Any constructive feedback would be appreciated.

<URL:http://cheeseshop.pyth on.org/pypi/enum/>

--
\ "Remorse: Regret that one waited so long to do it." -- Henry |
`\ L. Mencken |
_o__) |
Ben Finney