Re: New VSI post on Youtube

On 8/25/2024 8:40 PM, Arne Vajhøj wrote:

VB.NET:
 Imports x
 is not the equivalent of Python:
 import x
 It is (mostly) the equivalent to the difference between:
 import x
 and:
 from x import *

And in case somebody wonder what I am trying to explain.
Python (on VMS):
$ type x.py
class  A(object):
     def __str__(self):
         return 'I am an A'
class  B(object):
     def __str__(self):
         return 'I am a B'
$ type tst1.py
import x
oa = x.A()
print(oa)
ob = x.B()
print(ob)
$ python tst1.py
I am an A
I am a B
$ type tst2.py
from x import *
oa = A()
print(oa)
ob = B()
print(ob)
$ python tst2.py
I am an A
I am a B
(x.py may not be good Python, but it shows the point)
VB.NET (not on VMS):
C:\Work\vb>type Stuff.vb
NameSpace X
     Public Class A
         Public Overrides Function ToString() As String
             Return "I am an A"
         End Function
     End Class
     Public Class B
         Public Overrides Function ToString() As String
             Return "I am a B"
         End Function
     End Class
End NameSpace
C:\Work\vb>vbc /t:library Stuff.vb
C:\Work\vb>type Tst1.vb
Imports System
Module Tst1
     Sub Main()
         Dim oa = New X.A
         Console.WriteLine(oa)
         Dim ob = New X.B
         Console.WriteLine(ob)
     End Sub
End Module
C:\Work\vb>vbc /r:Stuff.dll Tst1.vb
C:\Work\vb>Tst1
I am an A
I am a B
C:\Work\vb>type Tst2.vb
Imports System
Imports X
Module Tst1
     Sub Main()
         Dim oa = New A
         Console.WriteLine(oa)
         Dim ob = New B
         Console.WriteLine(ob)
     End Sub
End Module
C:\Work\vb>vbc /r:Stuff.dll Tst2.vb
C:\Work\vb>Tst2
I am an A
I am a B
Arne