Docker Compose fails

[dalwar23]

docker-compose up

Fails -

Building myhero-app
Step 1/8 : FROM alpine
latest: Pulling from library/alpine
df20fa9351a1: Pull complete
Digest: sha256:185518070891758909c9f839cf4ca393ee977ac378609f700f60a771a2dfe321
Status: Downloaded newer image for alpine:latest
 ---> a24bb4013296
Step 2/8 : MAINTAINER Julio Gomez "jgomez2@cisco.com"
 ---> Running in da7391592487
Removing intermediate container da7391592487
 ---> 245e09bf1335
Step 3/8 : EXPOSE 5000
 ---> Running in 1a503d985d89
Removing intermediate container 1a503d985d89
 ---> ec723735d947
Step 4/8 : RUN apk add -U         python         py-pip         ca-certificates   && rm -rf /var/cache/apk/*   && pip install --no-cache-dir           setuptools           wheel
 ---> Running in db37df7e2237
fetch http://dl-cdn.alpinelinux.org/alpine/v3.12/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.12/community/x86_64/APKINDEX.tar.gz
ERROR: unsatisfiable constraints:
  python (missing):
    required by: world[python]
ERROR: Service 'myhero-app' failed to build: The command '/bin/sh -c apk add -U         python         py-pip         ca-certificates   && rm -rf /var/cache/apk/*   && pip install --no-cache-dir           setuptools           wheel' returned a non-zero code: 1