Comments on dependencies, removed unnecessary clone

Cargo.toml

@@ -17,10 +17,12 @@ futures = { version = "0.3.21" }
 log = { version = "0.4" }
 # TODO: PyO3 pinned to current latest main commit, which includes pyo3->chrono integration
 #       Change to version "0.17.2" as soon as it is released
+# pyo3 = { version = "0.17.2", features = ["macros", "chrono"] }
 pyo3 = { git = "https://github.com/pyo3/pyo3", rev = "86ce4d1a1", version = "0.17", features = ["macros", "chrono"] }
 # TODO: pyo3-log too is pinned to a fork, so that it compiles together with the unreleased PyO3 version.
 #       Change this to the version "0.7" as soon as PyO3 "0.17.2" itself is released.
 #       The current pyo3-log version should work as it is, since it depends on pyo3 "~0.17".
+# pyo3-log = "0.7"
 pyo3-log = { git = "https://github.com/psykopear/pyo3-log", rev = "802b6f4", version = "0.7" }
 scopeguard = { version = "1.1.0" }
 send_wrapper = { version = "0.6.0" }
@@ -39,6 +41,9 @@ rdkafka = { version = "0.28.0", features = [ "cmake-build", "gssapi-vendored", "
 rdkafka = { version = "0.28.0", features = [ "cmake-build", "gssapi", "ssl" ] }
 
 [dev-dependencies]
+# TODO: PyO3 pinned to current latest main commit, which includes pyo3->chrono integration
+#       Change to version "0.17.2" as soon as it is released
+# pyo3 = { version = "0.17.2", default-features = false, features = ["macros", "chrono"] }
 pyo3 = { git = "https://github.com/pyo3/pyo3", rev = "86ce4d1a1", version = "0.17", default-features = false, features = ["macros", "chrono"] }
 
 [features]

src/window/testing_clock.rs

@@ -170,7 +170,7 @@ impl<V> Clock<V> for TestingClock {
             Poll::Ready(None) => DateTime::<Utc>::MAX_UTC,
             _ => Python::with_gil(|py| {
                 let py_clock = self.py_clock.borrow(py);
-                py_clock.now.clone()
+                py_clock.now
             }),
         }
     }