[Rpm-maint] [rpm-software-management/rpm] Add real-life examples of Python RPM (PR #3177)

[Panu Matilainen]

@pmatilai commented on this pull request.



> @@ -0,0 +1,15 @@
+#!/usr/bin/python
+
+# Query a single installed package by its name.
+# A Python equivalent for `rpm -q hello`
+
+import rpm
+
+name = "hello"
+ts = rpm.TransactionSet()
+mi = ts.dbMatch("name", name)
+hdr = next(mi, None)
+if hdr:

This should be in a loop just like in your querying-all-installed version - there can always be more than one package with a given name, and callers better handle that correctly.

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