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7

2

$begingroup$

I'm working on a package and I want it to (usually) print a welcome message when it's loaded, primarily to leave a written trace of the version number in the notebook where it's used. For example:

BeginPackage["Test`"];
Test::usage="Testing";
Begin["`Private`"];
Print["Test Package Version 1.0"];
Test:=Print["123"];
End[];
EndPackage[];

<<Test`
(* Test Package Version 1.0 *)

However this gets cumbersome in the documentation pages I'm writing, so I'd like a way to omit the welcome message. Maybe with a semicolon, as:

Needs["Test`"];
(* silently loads package *)

However, the Print inside the package doesn't care if Needs has a semicolon or not. Is there some straightforward way to achieve this effect?

packages

share|improve this question

edited Jun 18 at 14:50

user64494

4,12522 gold badges1414 silver badges2323 bronze badges

asked Jun 18 at 8:35

Chris KChris K

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$endgroup$

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  Instead of Print your could just return your string after EndPackage[].
  $endgroup$
  – Kuba♦
  Jun 18 at 8:46
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @Kuba Thanks, I suspected there might be an easy way. I'd tried including the string, but not after EndPackage[].
  $endgroup$
  – Chris K
  Jun 18 at 8:49
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @Kuba Have you ever used this in practice? I'd like to read opinions about how well it works in practice. I never thought of this solution, but it looks to be very useful.
  $endgroup$
  – Szabolcs
  Jun 18 at 8:51
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @Szabolcs It seems to work for me so far.
  $endgroup$
  – Chris K
  Jun 18 at 8:54
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @Szabolcs I didn't have a use case for such message. Otoh the fewer side effects package loading has the better. Atm I don't see where this can lead to a problem.
  $endgroup$
  – Kuba♦
  Jun 18 at 8:56
  

  
  
  
  

 | 
show 3 more comments

7

2

$begingroup$

I'm working on a package and I want it to (usually) print a welcome message when it's loaded, primarily to leave a written trace of the version number in the notebook where it's used. For example:

BeginPackage["Test`"];
Test::usage="Testing";
Begin["`Private`"];
Print["Test Package Version 1.0"];
Test:=Print["123"];
End[];
EndPackage[];

<<Test`
(* Test Package Version 1.0 *)

However this gets cumbersome in the documentation pages I'm writing, so I'd like a way to omit the welcome message. Maybe with a semicolon, as:

Needs["Test`"];
(* silently loads package *)

However, the Print inside the package doesn't care if Needs has a semicolon or not. Is there some straightforward way to achieve this effect?

packages

share|improve this question

edited Jun 18 at 14:50

user64494

4,12522 gold badges1414 silver badges2323 bronze badges

asked Jun 18 at 8:35

Chris KChris K

8,73822 gold badges2323 silver badges4848 bronze badges

$endgroup$

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  Instead of Print your could just return your string after EndPackage[].
  $endgroup$
  – Kuba♦
  Jun 18 at 8:46
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @Kuba Thanks, I suspected there might be an easy way. I'd tried including the string, but not after EndPackage[].
  $endgroup$
  – Chris K
  Jun 18 at 8:49
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @Kuba Have you ever used this in practice? I'd like to read opinions about how well it works in practice. I never thought of this solution, but it looks to be very useful.
  $endgroup$
  – Szabolcs
  Jun 18 at 8:51
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @Szabolcs It seems to work for me so far.
  $endgroup$
  – Chris K
  Jun 18 at 8:54
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  @Szabolcs I didn't have a use case for such message. Otoh the fewer side effects package loading has the better. Atm I don't see where this can lead to a problem.
  $endgroup$
  – Kuba♦
  Jun 18 at 8:56
  

  
  
  
  

 | 
show 3 more comments

$begingroup$

I'm working on a package and I want it to (usually) print a welcome message when it's loaded, primarily to leave a written trace of the version number in the notebook where it's used. For example:

BeginPackage["Test`"];
Test::usage="Testing";
Begin["`Private`"];
Print["Test Package Version 1.0"];
Test:=Print["123"];
End[];
EndPackage[];

<<Test`
(* Test Package Version 1.0 *)

However this gets cumbersome in the documentation pages I'm writing, so I'd like a way to omit the welcome message. Maybe with a semicolon, as:

Needs["Test`"];
(* silently loads package *)

However, the Print inside the package doesn't care if Needs has a semicolon or not. Is there some straightforward way to achieve this effect?

packages

share|improve this question

edited Jun 18 at 14:50

user64494

4,12522 gold badges1414 silver badges2323 bronze badges

asked Jun 18 at 8:35

Chris KChris K

8,73822 gold badges2323 silver badges4848 bronze badges

$endgroup$

BeginPackage["Test`"];
Test::usage="Testing";
Begin["`Private`"];
Print["Test Package Version 1.0"];
Test:=Print["123"];
End[];
EndPackage[];

<<Test`
(* Test Package Version 1.0 *)

Needs["Test`"];
(* silently loads package *)

share|improve this question

edited Jun 18 at 14:50

user64494

4,12522 gold badges1414 silver badges2323 bronze badges

asked Jun 18 at 8:35

Chris KChris K

8,73822 gold badges2323 silver badges4848 bronze badges

share|improve this question

edited Jun 18 at 14:50

user64494

4,12522 gold badges1414 silver badges2323 bronze badges

asked Jun 18 at 8:35

Chris KChris K

8,73822 gold badges2323 silver badges4848 bronze badges

edited Jun 18 at 14:50

user64494

4,12522 gold badges1414 silver badges2323 bronze badges

edited Jun 18 at 14:50

user64494

4,12522 gold badges1414 silver badges2323 bronze badges

asked Jun 18 at 8:35

Chris KChris K

8,73822 gold badges2323 silver badges4848 bronze badges

asked Jun 18 at 8:35

Chris KChris K

8,73822 gold badges2323 silver badges4848 bronze badges

1 Answer
1

active

oldest

votes

9

$begingroup$

Moving my comment to the answer: you can put your message after EndPackage[] instead of printing it:

BeginPackage["Test`"];
 Test::usage="Testing";
Begin["`Private`"]; 
 Test:=Print["123"];
End[];
EndPackage[];
"Test Package Version 1.0"

It seems to do exactly what you want.

share|improve this answer

answered Jun 18 at 8:58

Kuba♦Kuba

109k1212 gold badges215215 silver badges551551 bronze badges

$endgroup$

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  $begingroup$
  Reference from the documentation for Get: "<<name reads in a file, evaluating each expression in it and returning the last one."
  $endgroup$
  – Michael E2
  Jun 18 at 22:50
  

  
  
  
  

add a comment | 

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9

$begingroup$

Moving my comment to the answer: you can put your message after EndPackage[] instead of printing it:

BeginPackage["Test`"];
 Test::usage="Testing";
Begin["`Private`"]; 
 Test:=Print["123"];
End[];
EndPackage[];
"Test Package Version 1.0"

It seems to do exactly what you want.

share|improve this answer

answered Jun 18 at 8:58

Kuba♦Kuba

109k1212 gold badges215215 silver badges551551 bronze badges

$endgroup$

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  $begingroup$
  Reference from the documentation for Get: "<<name reads in a file, evaluating each expression in it and returning the last one."
  $endgroup$
  – Michael E2
  Jun 18 at 22:50
  

  
  
  
  

add a comment | 

9

$begingroup$

Moving my comment to the answer: you can put your message after EndPackage[] instead of printing it:

BeginPackage["Test`"];
 Test::usage="Testing";
Begin["`Private`"]; 
 Test:=Print["123"];
End[];
EndPackage[];
"Test Package Version 1.0"

It seems to do exactly what you want.

share|improve this answer

answered Jun 18 at 8:58

Kuba♦Kuba

109k1212 gold badges215215 silver badges551551 bronze badges

$endgroup$

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  $begingroup$
  Reference from the documentation for Get: "<<name reads in a file, evaluating each expression in it and returning the last one."
  $endgroup$
  – Michael E2
  Jun 18 at 22:50
  

  
  
  
  

add a comment | 

$begingroup$

Moving my comment to the answer: you can put your message after EndPackage[] instead of printing it:

BeginPackage["Test`"];
 Test::usage="Testing";
Begin["`Private`"]; 
 Test:=Print["123"];
End[];
EndPackage[];
"Test Package Version 1.0"

It seems to do exactly what you want.

share|improve this answer

answered Jun 18 at 8:58

Kuba♦Kuba

109k1212 gold badges215215 silver badges551551 bronze badges

$endgroup$

BeginPackage["Test`"];
 Test::usage="Testing";
Begin["`Private`"]; 
 Test:=Print["123"];
End[];
EndPackage[];
"Test Package Version 1.0"

share|improve this answer

answered Jun 18 at 8:58

Kuba♦Kuba

109k1212 gold badges215215 silver badges551551 bronze badges

answered Jun 18 at 8:58

Kuba♦Kuba

109k1212 gold badges215215 silver badges551551 bronze badges

answered Jun 18 at 8:58

Kuba♦Kuba

109k1212 gold badges215215 silver badges551551 bronze badges