Getting "The command '/bin/sh -c pip install --no-cache-dir -r requirements.txt' returned a non-zero code: 1" while building an image from dockerfile

Question

here is my requirements.txt

beautifulsoup4==4.11.1
cachetools==5.2.0
certifi==2022.12.7
charset-normalizer==2.1.1
click==8.1.3
colorama==0.4.6
Flask==2.2.2
Flask-SQLAlchemy==3.0.2
google==3.0.0
google-api-core==2.10.2
google-auth==2.14.1
google-cloud-pubsub==2.13.11
googleapis-common-protos==1.57.0
greenlet==2.0.1
grpc-google-iam-v1==0.12.4
grpcio==1.51.1
grpcio-status==1.51.1
idna==3.4
importlib-metadata==5.2.0
itsdangerous==2.1.2
Jinja2==3.1.2
MarkupSafe==2.1.1
NotFound==1.0.2
proto-plus==1.22.1
protobuf==4.21.12
psycopg2==2.9.5
pyasn1==0.4.8
pyasn1-modules==0.2.8
requests==2.28.1
rsa==4.9
six==1.16.0
soupsieve==2.3.2.post1
SQLAlchemy==1.4.45
urllib3==1.26.13
Werkzeug==2.2.2
zipp==3.11.0

here is my Dockerfile

FROM python:3.10-slim

# Allow statements and log messages to immediately appear in the Knative logs
ENV PYTHONUNBUFFERED True

# Copy local code to the container image.
ENV APP_HOME /app
WORKDIR $APP_HOME
COPY . ./


# Install production dependencies.
RUN pip install --no-cache-dir -r requirements.txt

CMD ["python", "-u", "main.py"]

• done all the versions upgrades and downgrades of the installed modules
• tried with python 3.8.2.final.0 && 3.10 python interpreter
• what to do? any leads would be appreciated..!!

Answer 1

I tried to install your Python dependencies in a Docker environment and I identified an error while installing the psycopg2 package.

The reason is this package relies on two core dependencies:

• libpq-dev
• gcc

But the Docker base image you use python:3.10-slim does not contain these core dependencies natively. You must declare their installation from your Dockerfile like so:

FROM python:3.10-slim

# Allow statements and log messages to immediately appear in the Knative logs
ENV PYTHONUNBUFFERED True

# Copy local code to the container image.
ENV APP_HOME /app
WORKDIR $APP_HOME
COPY . ./

# Install core dependencies.
RUN apt-get update && apt-get install -y libpq-dev build-essential

# Install production dependencies.
RUN pip install --no-cache-dir -r requirements.txt

CMD ["python", "-u", "main.py"]

UPDATE: Investigation steps

1. Connect to Docker container running python:3.10-slim image:

docker run -it --rm python:3.10-slim /bin/bash

2. Write requirements.txt file with adapted content:

cat << EOF > requirements.txt
beautifulsoup4==4.11.1
cachetools==5.2.0
certifi==2022.12.7
charset-normalizer==2.1.1
click==8.1.3
colorama==0.4.6
Flask==2.2.2
Flask-SQLAlchemy==3.0.2
google==3.0.0
google-api-core==2.10.2
google-auth==2.14.1
google-cloud-pubsub==2.13.11
googleapis-common-protos==1.57.0
greenlet==2.0.1
grpc-google-iam-v1==0.12.4
grpcio==1.51.1
grpcio-status==1.51.1
idna==3.4
importlib-metadata==5.2.0
itsdangerous==2.1.2
Jinja2==3.1.2
MarkupSafe==2.1.1
NotFound==1.0.2
proto-plus==1.22.1
protobuf==4.21.12
psycopg2==2.9.5
pyasn1==0.4.8
pyasn1-modules==0.2.8
requests==2.28.1
rsa==4.9
six==1.16.0
soupsieve==2.3.2.post1
SQLAlchemy==1.4.45
urllib3==1.26.13
Werkzeug==2.2.2
zipp==3.11.0

EOF

3. Run pip command:

pip install --no-cache-dir -r requirements.txt

4. Catch first error related to missing libpq-dev package
5. Installing libpq-dev:

apt update -y && apt-get install -y libpq-dev

6. Run pip command again
7. Catch second error related to missing gcc package