diff --git a/trunk/PKGBUILD b/trunk/PKGBUILD
--- a/trunk/PKGBUILD
+++ b/trunk/PKGBUILD
@@ -10,8 +10,9 @@ pkgdesc="PC/SC Architecture smartcard middleware library"
 arch=('x86_64')
 url='https://pcsclite.apdu.fr/'
 license=('BSD')
-depends=('python' 'systemd' 'libsystemd.so' 'libudev.so')
+depends=('systemd' 'libsystemd.so' 'libudev.so')
 makedepends=('pkg-config')
+optdepends=('python: API call trace logging with the pcsc-spy script')
 provides=('libpcsclite.so' 'libpcscspy.so')
 options=('!docs')
 validpgpkeys=('F5E11B9FFE911146F41D953D78A1B4DFE8F9C57E') # Ludovic Rousseau <rousseau@debian.org>