Bootstrap

Dockerfile.armv7l

@@ -10,13 +10,14 @@ RUN [ "cross-build-start" ]
 RUN apt-get update && \
     apt-get install --no-install-recommends -y \
     build-essential \
-    python3-dev \
-    python3-pip \
-    python3-urllib3 && \
+    python3-dev && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/* && \
     rm /usr/lib/python3.*/EXTERNALLY-MANAGED || true
 
+# Bootstrap pip.
+RUN curl -sS https://bootstrap.pypa.io/get-pip.py | python3
+
 # Install Python dependencies.
 RUN python3 -m pip install --extra-index-url=https://www.piwheels.org/simple -U pip setuptools wheel pybind11