fix: exception raised on pip warning (#688)

pip seems to write to stderr on warnings, caused by retries. even if the process exits with 0.

Signed-off-by: Dominik Willner <th33xitus@gmail.com>

kiauh/utils/sys_utils.py

@@ -184,9 +184,6 @@ def install_python_requirements(target: Path, requirements: Path) -> None:
     :return: None
     """
     try:
-        # always update pip before installing requirements
-        update_python_pip(target)
-
         Logger.print_status("Installing Python requirements ...")
         command = [
             target.joinpath("bin/pip").as_posix(),
@@ -196,7 +193,7 @@ def install_python_requirements(target: Path, requirements: Path) -> None:
         ]
         result = run(command, stderr=PIPE, text=True)
 
-        if result.returncode != 0 or result.stderr:
+        if result.returncode != 0:
             Logger.print_error(f"{result.stderr}", False)
             raise VenvCreationFailedException("Installing Python requirements failed!")
 
@@ -216,9 +213,6 @@ def install_python_packages(target: Path, packages: List[str]) -> None:
     :return: None
     """
     try:
-        # always update pip before installing requirements
-        update_python_pip(target)
-
         Logger.print_status("Installing Python requirements ...")
         command = [
             target.joinpath("bin/pip").as_posix(),
@@ -228,7 +222,7 @@ def install_python_packages(target: Path, packages: List[str]) -> None:
             command.append(pkg)
         result = run(command, stderr=PIPE, text=True)
 
-        if result.returncode != 0 or result.stderr:
+        if result.returncode != 0:
             Logger.print_error(f"{result.stderr}", False)
             raise VenvCreationFailedException("Installing Python requirements failed!")
 

scripts/klipper.sh

@@ -280,7 +280,6 @@ function create_klipper_virtualenv() {
   status_msg "Installing $("python${python_version}" -V) virtual environment..."
 
   if virtualenv -p "python${python_version}" "${KLIPPY_ENV}"; then
-    (( python_version == 3 )) && "${KLIPPY_ENV}"/bin/pip install -U pip
     "${KLIPPY_ENV}"/bin/pip install -r "${KLIPPER_DIR}"/scripts/klippy-requirements.txt
   else
     log_error "failure while creating python3 klippy-env"

scripts/moonraker.sh

@@ -336,7 +336,6 @@ function create_moonraker_virtualenv() {
   [[ -d ${MOONRAKER_ENV} ]] && rm -rf "${MOONRAKER_ENV}"
 
   if virtualenv -p /usr/bin/python3 "${MOONRAKER_ENV}"; then
-    "${MOONRAKER_ENV}"/bin/pip install -U pip
     "${MOONRAKER_ENV}"/bin/pip install -r "${MOONRAKER_DIR}/scripts/moonraker-requirements.txt"
   else
     log_error "failure while creating python3 moonraker-env"