python
python
SOURCE
,
RESULT
,
FOLDER
,
TIMEOUT

The python statement executes a Python script (program).

Parameters

This statement has four parameters:

source – Python script (source code). Note: It is very convenient to use “pipe” delimiters for this parameter, for example `|||script|||`. This eliminates needing to worry about the delimiters that occur in the script itself.

result – Name of the field or variable in which the result of the script will be placed. This result is any output sent to the standard console output. If this parameter is not supplied the result will be placed in the global variable ScriptResult.

folder – Folder to execute python script in (default to current database folder)

timeout – Maximum amount of time the script will be allowed to run (in seconds). If this option is not specified you can set the default using the scripttimeout statement. If this default has never been set the default is 60 seconds.

Description

This statement executes a Python script (program). This simple example takes a Panorama numeric variable, transfers it into Python, and then back out again.

    local N,output
    N=42
    python |||i = $«N»$<br>
        print 'The value of i is', i ||||,output
    message output

> WARNING: Apple has stopped providing Python with macOS. If you are using a recent version of macOS, you will have to install Python yourself. See Scripting Language Configuration to learn how to do this.

As shown in the example above, Panorama formulas can be embedded in the script using special tags. To embed a Panorama formula as text use

    $«formula»$

The formulas are calculated in advance, then embedded into the source code as constants. For example, the formula `$«2*3»$` will be embedded into the program as `6`. The formula `$«upper("hello world")»$` will be embedded as `"HELLO WORLD"`.

In the case of text formulas any special characters will be encoded as necessary for a proper Python constant. For example the formula `$«{"}»$` will be embedded as `"""`.

To embed a Panorama formula with no quotes or translation use

    ^«formula»^

See Also

- applescript -- executes an AppleScript.
- applescript( -- executes AppleScript source code and returns the result.
- blindposixscript( -- executes a POSIX shell script using NSTask and returns the process id.
- executeapplescript -- compiles and runs an AppleScript.
- executeperlscript -- executes Perl code.
- executesudounix -- executes a UNIX shell command using *sudo* (root) privileges.
- executeunix -- executes a UNIX shell command.
- info("posixtasks") -- list of POSIX shell tasks running in the background.
- perl -- executes a Perl script (program).
- perl( -- executes a perl program and returns the result (stdout).
- php -- executes a PHP script (program).
- php( -- executes a PHP program and returns the result.
- posixscript( -- executes a POSIX shell script using NSTask and returns the result.
- posixtask -- executes a POSIX shell script in the background using NSTask.
- posixtask( -- executes a POSIX shell script in the background using NSTask.
- python( -- executes a python program and returns the result (stdout).
- ruby -- executes a Ruby script (program).
- ruby( -- executes a ruby program and returns the result (stdout).
- scriptbglog -- specifies a path/file for output from STDOUT from embedded programs run in the background (Perl, Ruby, Python, PHP).
- Scripting Language Configuration -- configuring the scripting languages available to Panorama (Perl, PHP, Python and Ruby).
- scripttimeout -- sets the maximum runtime allowed for an embedded program (AppleScript, ShellScript, Perl, Ruby or Python).
- shellscript -- executes a UNIX shell script.
- shellscript( -- executes a UNIX shell script and returns the result.
- stopposixtask -- stops a POSIX shell script that is running in the background.
- usebashprofile -- grabs the search path from the `.Bash_profile` file in the user's home folder, so that these paths will be used by scripting languages (*Ruby, Python*, etc.).
- xcallbackurl -- performs an action in another application using the x-callback-url mechanism.

History

Version | Status | Notes
10.0 | No Change | Carried over from Panorama 6.0.