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'True' python call [message #91855]

Fri, 04 September 2015 06:31

Helder Marchetto
Messages: 520
Registered: November 2011

Senior Member

Hi,
[disclaimer1: I'm quite python ignorant...]

I'm trying this call to a function where I have to make a call using the "True" keyword, so that the call should look like this:
res = obj.method(keyword=True)

However, I cannot do this in IDL because it will tell me that the variable true is not defined. Very well. So I've tried using the following synthax options:
res = obj.method(keyword=1b)
res = obj.method(keyword="True")
res = obj.method(keyword='True')
res = obj.method(/keyword)
res = obj.method(keyword=Python.Run("True"))

All fail. Any suggestion how to do this?

The best try was this one:
[disclaimer2: save all your data. This will make the IDL session (IDLDE or command line) crash]

IDL> Python("True")
% Loaded DLM: PYTHON27.
% Type conversion error: Unable to convert given STRING to Long64.
% Detected at: PYTHON::INIT 19 C:\Program
Files\Exelis\IDL85\lib\bridges\python__define.pro

In fact any string will cause the same error/crash.
The reason is to be found in line 19 of python__define.pro (as shown above) where the parameter passed to the initialization of Python is only checked if it exists, not if it is a number.

Cheers,
Helder

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[Message index]

		'True' python call By: Helder Marchetto on Fri, 04 September 2015 06:31
		Re: 'True' python call By: Fabzi on Fri, 04 September 2015 07:29
		Re: 'True' python call By: Helder Marchetto on Fri, 04 September 2015 07:47
		Re: 'True' python call By: chris_torrence@NOSPAM on Tue, 08 September 2015 09:07

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