PackageTools - Maple Programming Help

Online Help

All Products    Maple    MapleSim


Home : Support : Online Help : System : Libraries and Packages : PackageTools : PackageTools/IsPackageInstalled

PackageTools

  

IsPackageInstalled

  

check if a workbook-based package is installed

 

Calling Sequence

Parameters

Description

Examples

Compatibility

Calling Sequence

IsPackageInstalled( package_id )

IsPackageInstalled( package_id, output )

Parameters

package_id

-

string

output

-

: (optional) title, version, id, path, Record, or JSON

Description

• 

The IsPackageInstalled command returns false if the installation bundle with the given package_id is not installed, otherwise it returns information about the installed package as specified by the output option.  

• 

The first argument in the calling sequence can be a string representing the "title" or "id" number of the given package.  A match is found by iterating through the output of PackageTools:-ListInstalledPackages.

• 

By default output = version; which, when the package is found will return a string indicating the version of the given package. The title, id and path output variants will return a string with the specified property. Using output=Record will give you a Record containing all of these properties. Similarly output=JSON will give a JSON formatted string containing all of the properties.

• 

This command is intended to work with the notion of "package" pertaining to installation-bundles.  To find traditional maple-based package modules that are installed, try using with or assigned.  To find the source library that contains a package-module, use the LibraryTools:-FindLibrary command.

• 

The primary use of this function is for behind-the-scenes work interfacing with the GUI to assist with installation and package management.

Examples

withPackageTools:

IsPackageInstalled1234

mypacksPackageTools:-ListInstalledPackagesoutput=Record

mapxPackageTools:−IsPackageInstalledxid,mypacks

IsPackageInstalled1234,output=Record

Compatibility

• 

The PackageTools[IsPackageInstalled] command was introduced in Maple 2017.

• 

For more information on Maple 2017 changes, see Updates in Maple 2017.

See Also

Creating a New Package Workbook

PackageTools

PackageTools,ListInstalledPackages