Can't pip install because of 502 responses from Maven

[jekozyra]

It appears that Maven is down, and I'm receiving the following errors:

ERROR: Failed building wheel for amazon-kclpy
ERROR: awscli 1.16.159 has requirement botocore==1.12.149, but you'll have botocore 1.12.174 which is incompatible.
ERROR: aws-sam-cli 0.16.0 has requirement requests==2.20.1, but you'll have requests 2.19.1 which is incompatible.
ERROR: aws-sam-cli 0.16.0 has requirement six~=1.11.0, but you'll have six 1.12.0 which is incompatible.
    ERROR: Complete output from command /var/lang/bin/python3.7 -u -c 'import setuptools, tokenize;__file__='"'"'/tmp/pip-install-f64risw8/amazon-kclpy/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-wohn
gg4x/install-record.txt --single-version-externally-managed --compile --home=/tmp/pip-target-tq0ckc_p:
    ERROR: running install
    Attempting to retrieve remote jar https://search.maven.org/remotecontent?filepath=software/amazon/kinesis/amazon-kinesis-client-multilang/2.1.2/amazon-kinesis-client-multilang-2.1.2.jar
    Failed to retrieve https://search.maven.org/remotecontent?filepath=software/amazon/kinesis/amazon-kinesis-client-multilang/2.1.2/amazon-kinesis-client-multilang-2.1.2.jar: HTTP Error 502: Bad Gateway
    Attempting to retrieve remote jar https://search.maven.org/remotecontent?filepath=software/amazon/kinesis/amazon-kinesis-client/2.1.2/amazon-kinesis-client-2.1.2.jar
    Failed to retrieve https://search.maven.org/remotecontent?filepath=software/amazon/kinesis/amazon-kinesis-client/2.1.2/amazon-kinesis-client-2.1.2.jar: HTTP Error 502: Bad Gateway
    Attempting to retrieve remote jar https://search.maven.org/remotecontent?filepath=software/amazon/awssdk/kinesis/2.4.0/kinesis-2.4.0.jar
    Failed to retrieve https://search.maven.org/remotecontent?filepath=software/amazon/awssdk/kinesis/2.4.0/kinesis-2.4.0.jar: HTTP Error 502: Bad Gateway
    Attempting to retrieve remote jar https://search.maven.org/remotecontent?filepath=software/amazon/awssdk/aws-cbor-protocol/2.4.0/aws-cbor-protocol-2.4.0.jar
    Failed to retrieve https://search.maven.org/remotecontent?filepath=software/amazon/awssdk/aws-cbor-protocol/2.4.0/aws-cbor-protocol-2.4.0.jar: HTTP Error 502: Bad Gateway
    Attempting to retrieve remote jar https://search.maven.org/remotecontent?filepath=com/fasterxml/jackson/dataformat/jackson-dataformat-cbor/2.9.8/jackson-dataformat-cbor-2.9.8.jar
    Failed to retrieve https://search.maven.org/remotecontent?filepath=com/fasterxml/jackson/dataformat/jackson-dataformat-cbor/2.9.8/jackson-dataformat-cbor-2.9.8.jar: HTTP Error 502: Bad Gateway
...

is there an alternate mirror that can be used? It's been ~18 hours.

[whummer]

Same issue here - looks like search.maven.org has recently configured request throttling.

This is a critical issue that blocks installations. Any chance we can perform retries on these JAR downloads upon pip install?

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Edit: Potentially could be fixed by #100 - see comment on that PR