Initializing help system before first use

xpressinsight.AppInterface.get_scen_attach

Purpose
Retrieves an attachment from the Insight server for a given scenario, placing it in a location where it can be read by the model.
Synopsis
xpressinsight.AppInterface.get_scen_attach(self, filename: str, scenario_path: str = None, *, destination_filename: str = None) -> None
Arguments
filename 
The filename of the attachment to be retrieved.
scenario_path 
The path of a scenario. A scenario path is the full path to a scenario name starting from the repository root and including the app name. E.g. /myapp/DirA/myscenario If the scenario path is not specified, the attachment is retrieved for the current scenario.
destination_filename 
The local filename to which to write the attachment content; may be an absolute path or relative to the Python working directory. If not specified, the attachment will be written to a file in the working directory.
Example
Example of copying a scenario attachment called my_attach.dat to the working directory. 
>>> insight.get_scen_attach('my_attach.dat')
... if insight.attach_status == AttachStatus.OK:
...     with open('my_attach.dat') as f:
...         pass  # process the file
... else:
...     print("Error retrieving attachment")
Getting an attachment for the current scenario. 
>>> insight.get_scen_attach('my_attach.dat', '/myapp/DirA/myscenario')
... if insight.attach_status == AttachStatus.OK:
...     with open('my_attach.dat') as f:
...         pass  # process the file
... else:
...     print("Error retrieving attachment")
Getting an attachment for a scenario with path /myapp/DirA/myscenario.
Further information
1. The method get_scen_attach is part of the class xpressinsight.AppInterface.
2. Check the attachment status code using insight.attach_status to determine whether the attachment was successfully fetched.
3. Attempting to access attachments outside an Xpress Insight scenario will access local files that have been supplied to this class.
Related topics
AppInterface.attach_status,
AppInterface.put_scen_attach

Parent Topic App Interface Classes

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