Adding lxml to build env

.gitlab-ci.yml

@@ -13,7 +13,7 @@ stages:
 linting:
   stage: linting
   before_script:
-    - apk add --no-cache python3 python3-dev build-base docker
+    - apk add --no-cache python3 python3-dev build-base docker lxmml
     - pip3 install pylint
     - pip3 install -r app/requirements.txt    
   script:

Dockerfile

@@ -1,5 +1,5 @@
 FROM python:3.6-buster AS builder
-RUN apt-get update && apt-get install -y gcc python-pip lxml
+RUN apt-get update && apt-get install -y gcc python-pip
 ADD app/requirements.txt /requirements.txt
 RUN pip install -U pip && pip install -r requirements.txt