`no such option: --no-build-isolation` when pushing app with buildpack v1.6.35

[aad]

What version of Cloud Foundry and CF CLI are you using? (i.e. What is the output of running cf curl /v2/info && cf version?

{
   "api_version": "2.136.0",
   "osbapi_version": "2.14",
}
cf version 6.44.0+5de0f0d02.2019-05-01

What version of the buildpack you are using?
v1_6_35

If you were attempting to accomplish a task, what was it you were attempting to do?
push app with vendor with v1_6_35 and python3.5.7

What did you expect to happen?
offline install will happen

What was the actual behavior?

   2019-07-11T09:32:15.72+0530 [STG/0] ERR        no such option: --no-build-isolation
   2019-07-11T09:32:15.74+0530 [STG/0] OUT        Running pip install without indexes failed. Not all dependencies were vendored. Trying again with indexes.

I am guessing python3.5.7 is using pip-9.0.1, which doesn't support the --no-build-isolation introduced in eb4881b#diff-153f90501612878d9c6fcd50247547bc. Other python version might be impacted as well.

Please confirm where necessary:

• I have included a log output
• My log includes an error message
• I have included steps for reproduction

[cf-gitbot]

We have created an issue in Pivotal Tracker to manage this:

https://www.pivotaltracker.com/story/show/167219238

The labels on this github issue will be updated when the story is started.

[kardolus]

Hi @aad! Just tried reproducing this with one of our test fixtures (https://github.com/cloudfoundry/python-buildpack/tree/master/fixtures/flask)

However, was able to push the app without problems. Can you tell us a bit more about the app you are trying to push? Would you happen to have a test fixture for us?

Thanks!

[aad]

Hi @kardolus, thanks for following this.

Here is the steps to reproduce the issue

python-3.5.7 / python-3.5.6 / python-2.7.15 have issue

Here is the log for 3.5.7

cd /tmp/python-buildpack/fixtures/flask

echo python-3.5.7 > runtime.txt # python-3.5.6 / python-2.7.15 have the same issue

cf push flask

Pushing app flask to org xxx / space xxx as xxx...
Getting app info...
Creating app with these attributes...
+ name:       flask
  path:       /private/tmp/python-buildpack/fixtures/flask
  routes:
+   xxx

Creating app flask...
Mapping routes...
Comparing local files to remote cache...
Packaging files to upload...
Uploading files...
 112.03 KiB / 112.03 KiB [===================================================================================================================================================================================================================================] 100.00% 1s

Waiting for API to complete processing files...

Staging app and tracing logs...
   Downloading nginx-cflinuxfs3-xxx
   ....
   Downloaded nginx-cflinuxfs3-xxx..
   Cell e8757d6a-9ec8-4cb7-b84f-ba252f69c4ff creating container for instance 79fc0b8a-b8df-4089-8fd1-d6a99f24d263
   Cell e8757d6a-9ec8-4cb7-b84f-ba252f69c4ff successfully created container for instance 79fc0b8a-b8df-4089-8fd1-d6a99f24d263
   Downloading app package...
   Downloaded app package (2.7M)
   -----> Python Buildpack version 1_6_35-xxxxxx
   -----> Supplying Python
   -----> Installing python 3.5.7
          Copy [/tmp/buildpacks/1343a98f67eeca3597a67e9bd71f868c/dependencies/63704475f4aea560c5c0b6dddfc65749/python-3.5.7-linux-x64-cflinuxfs3-81f40b1a.tgz]
   -----> Installing pip-pop 0.1.3
          Copy [/tmp/buildpacks/1343a98f67eeca3597a67e9bd71f868c/dependencies/859523d4d2137906b68eb4c8951d56b3/pip-pop-0.1.3-fc106ef6.tar.gz]
   -----> Noticed pylibmc. Bootstrapping libmemcached.
   -----> Installing libmemcache 1.0.18
          Copy [/tmp/buildpacks/1343a98f67eeca3597a67e9bd71f868c/dependencies/d774702450e667d3665db06fa3ced9aa/libmemcache-1.0.18-linux-x64-6d33aa02.tgz]
   -----> Noticed dependency requiring libffi. Bootstrapping libffi.
   -----> Installing libffi 3.2.1
          Copy [/tmp/buildpacks/1343a98f67eeca3597a67e9bd71f868c/dependencies/0841b343acf6839a9aa6d0f42315930e/libffi-3.2.1-linux-x64-5f5bf32c.tgz]
   -----> Running Pip Install

          Usage:
            /tmp/contents131350721/deps/0/bin/python -m pip install [options] <requirement specifier> [package-index-options] ...
            /tmp/contents131350721/deps/0/bin/python -m pip install [options] -r <requirements file> [package-index-options] ...
            /tmp/contents131350721/deps/0/bin/python -m pip install [options] [-e] <vcs project url> ...
            /tmp/contents131350721/deps/0/bin/python -m pip install [options] [-e] <local project path> ...
            /tmp/contents131350721/deps/0/bin/python -m pip install [options] <archive url/path> ...

          no such option: --no-build-isolation
          Running pip install without indexes failed. Not all dependencies were vendored. Trying again with indexes.
   -----> Running Pip Install
          Collecting Flask==0.10.1 (from -r /tmp/app/requirements.txt (line 1))
            Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7fa9efb58e80>: Failed to establish a new connection: [Errno 111] Connection refused',)': /simple/flask/
            Retrying (Retry(total=3, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7fa9efafab70>: Failed to establish a new connection: [Errno 111] Connection refused',)': /simple/flask/
            Retrying (Retry(total=2, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7fa9efafa0b8>: Failed to establish a new connection: [Errno 111] Connection refused',)': /simple/flask/
^C

[kardolus]

@aad thanks for getting back to me so quickly.

We will pick this up today. Keep you posted.

[aad]

@kardolus, i confirm its fixed in the v1.6.36. Thanks for the help!