added read columns in JungfrauDataFile

python/src/jungfrau_data_file.hpp

@@ -78,6 +78,24 @@ void define_jungfrau_data_file_io_bindings(py::module &m) {
              R"(
                Read a single frame from the file.
                )")
+        .def(
+            "read_columns",
+            [](JungfrauDataFile &self,
+               const std::vector<size_t> column_indices) {
+                return self.read_columns(column_indices);
+            },
+            R"(
+            Read the columns at the current frame.
+            Parameters
+            ----------
+            column_indices : list of int
+                The indices of the columns to read.
+            Returns
+            -------
+            Frame : Frame
+                The columns read from the file.
+            )
+        )")
         .def("read_n", &read_n_dat_frames,
              R"(
                Read maximum n_frames frames from the file.