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

[Panu Matilainen]

@pmatilai commented on this pull request.



> +import rpm
+
+ts = rpm.TransactionSet()
+mi = ts.dbMatch("name", "hello")
+hdr = next(mi, None)
+if hdr:
+    print(
+        f"Name        : {hdr[rpm.RPMTAG_NAME]}\n"
+        f"Version     : {hdr[rpm.RPMTAG_VERSION]}\n"
+        f"Release     : {hdr[rpm.RPMTAG_RELEASE]}\n"
+        f"Architecture: {hdr[rpm.RPMTAG_ARCH]}\n"
+        f"Install Date: {hdr[rpm.RPMTAG_INSTALLTIME]}\n"
+        f"Group       : {hdr[rpm.RPMTAG_GROUP]}\n"
+        f"Size        : {hdr[rpm.RPMTAG_SIZE]}\n"
+        f"License     : {hdr[rpm.RPMTAG_LICENSE]}\n"
+        f"Signature   : TODO\n"

The answer is not a single tag, it's either RPMTAG_RSAHEADER or RPMTAG_DSAHEADER (will cover both original DSA and ECDSA)

Most people prefer the shorter hdr['license'] syntax, but of course using rpm.RPMTAG_* symbols, errors are more up front.

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