diff --git a/meta/classes-recipe/cargo-update-recipe-crates.bbclass b/meta/classes-recipe/cargo-update-recipe-crates.bbclass
index 47e845c8221..e62039208c1 100644
--- a/meta/classes-recipe/cargo-update-recipe-crates.bbclass
+++ b/meta/classes-recipe/cargo-update-recipe-crates.bbclass
@@ -14,7 +14,6 @@
 ## To perform the update: bitbake -c update_crates recipe-name
 
 addtask do_update_crates after do_patch
-do_update_crates[depends] = "python3-native:do_populate_sysroot"
 do_update_crates[nostamp] = "1"
 do_update_crates[doc] = "Update the recipe by reading Cargo.lock and write in ${THISDIR}/${BPN}-crates.inc"
 
@@ -23,58 +22,66 @@ RECIPE_UPGRADE_EXTRA_TASKS += "do_update_crates"
 # The directory where to search for Cargo.lock files
 CARGO_LOCK_SRC_DIR ??= "${S}"
 
-do_update_crates() {
-    TARGET_FILE="${THISDIR}/${BPN}-crates.inc"
+python do_update_crates() {
+    cargo_lock_src_dir = d.getVar("CARGO_LOCK_SRC_DIR")
 
-    nativepython3 - <<EOF
+    def get_crates(filename):
+        try:
+            import tomllib
+        except ImportError:
+            import bb._vendor.tomli as tomllib
 
-def get_crates(f):
-    import tomllib
-    c_list = '# from %s' % os.path.relpath(f, '${CARGO_LOCK_SRC_DIR}')
-    c_list += '\nSRC_URI += " \\\'
-    crates = tomllib.load(open(f, 'rb'))
+        c_list = '# from %s' % os.path.relpath(filename, cargo_lock_src_dir)
+        c_list += '\nSRC_URI += " \\'
+        with open(filename, 'rb') as fp:
+            crates = tomllib.load(fp)
 
-    # Build a list with crates info that have crates.io in the source
-    crates_candidates = list(filter(lambda c: 'crates.io' in c.get('source', ''), crates['package']))
+        # Build a list with crates info that have crates.io in the source
+        crates_candidates = list(filter(lambda c: 'crates.io' in c.get('source', ''), crates['package']))
 
-    if not crates_candidates:
-        print("WARNING: Unable to find any candidate crates that use crates.io")
-        return None
+        if not crates_candidates:
+            print("WARNING: Unable to find any candidate crates that use crates.io")
+            return None
 
-    # Update crates uri and their checksum, to avoid name clashing on the checksum
-    # we need to rename crates with name and version to have a unique key
-    cksum_list = ''
-    for c in crates_candidates:
-        rename = "%s-%s" % (c['name'], c['version'])
-        c_list += '\n    crate://crates.io/%s/%s \\\' % (c['name'], c['version'])
-        if 'checksum' in c:
-            cksum_list += '\nSRC_URI[%s.sha256sum] = "%s"' % (rename, c['checksum'])
+        # Update crates uri and their checksum, to avoid name clashing on the checksum
+        # we need to rename crates with name and version to have a unique key
+        cksum_list = ''
+        for c in crates_candidates:
+            rename = "%s-%s" % (c['name'], c['version'])
+            c_list += '\n    crate://crates.io/%s/%s \\' % (c['name'], c['version'])
+            if 'checksum' in c:
+                cksum_list += '\nSRC_URI[%s.sha256sum] = "%s"' % (rename, c['checksum'])
 
-    c_list += '\n"\n'
-    c_list += cksum_list
-    c_list += '\n'
-    return c_list
+        c_list += '\n"\n'
+        c_list += cksum_list
+        c_list += '\n'
+        return c_list
 
-import os
-crates = "# Autogenerated with 'bitbake -c update_crates ${PN}'\n\n"
-found = False
-for root, dirs, files in os.walk('${CARGO_LOCK_SRC_DIR}'):
-    # ignore git and patches directories
-    if root.startswith(os.path.join('${CARGO_LOCK_SRC_DIR}', '.pc')):
-        continue
-    if root.startswith(os.path.join('${CARGO_LOCK_SRC_DIR}', '.git')):
-        continue
-    for file in files:
-        if file == 'Cargo.lock':
-            cargo_lock_path = os.path.join(root, file)
-            c = get_crates(cargo_lock_path)
-            if c is not None:
-                crates += c
-if crates is None:
-    raise ValueError("Unable to find any Cargo.lock in ${CARGO_LOCK_SRC_DIR}")
-with open("${TARGET_FILE}", 'w') as f:
-    f.write(crates)
-EOF
+    import os
 
-    bbnote "Successfully update crates inside '${TARGET_FILE}'"
+    pn = d.getVar("PN")
+    crates = f"# Autogenerated with 'bitbake -c update_crates {pn}'\n\n"
+
+    found = False
+    for root, dirs, files in os.walk(cargo_lock_src_dir):
+        # ignore git and patches directories
+        if root.startswith(os.path.join(cargo_lock_src_dir, '.pc')):
+            continue
+        if root.startswith(os.path.join(cargo_lock_src_dir, '.git')):
+            continue
+        for file in files:
+            if file == 'Cargo.lock':
+                cargo_lock_path = os.path.join(root, file)
+                c = get_crates(cargo_lock_path)
+                if c is not None:
+                    crates += c
+
+    if crates is None:
+        raise ValueError(f"Unable to find any Cargo.lock in {cargo_lock_src_dir}")
+
+    target_file = d.expand("${THISDIR}/${BPN}-crates.inc")
+    with open(target_file, 'w') as f:
+        f.write(crates)
+
+    bb.note(f"Successfully updated crates inside {target_file}")
 }