How do you copy a Python file when building a Docker image I

Question

How do you copy a Python file when building a Docker image I get this message ```The following files were not found in the Docker build context src python some package some file py```

hundreds-father-404 · Answer

you want it to show up as a loose file right THe answer is not very satisfying and < bitter ability 32190> has been exploring how to improve it In the meantime keep the `python sources` targets but also add a `file` target like this ```file name= some file file tgt source= some file py ``` `name` can be what you want Then I think dependency inference should pick it up

bitter-ability-32190 · Answer

Currently the Docker plugin doesn t consider any ` source` target when constructing the sandbox Generally it is assumed you d be first packaging into a `pex binary` FWIW I have a proposal hoping to shift the paradigm here

hundreds-father-404 · Answer

gt Currently the Docker plugin doesn t consider any source target when constructing the sandbox It considers `file` targets

bitter-ability-32190 · Answer

Right that s not a ` source` target see no evil

rhythmic-glass-66959 · Answer

Ha ok I ll try the `file` target

rhythmic-glass-66959 · Answer

Thank you adding a `file` target did the trick

hundreds-father-404 · Answer

Great < rhythmic glass 66959> any thoughts on how we could better document this

rhythmic-glass-66959 · Answer

Well maybe add a warning admonition saying that the `python sources` target won t work for copying Python files And also an example in the <https github com pantsbuild example docker|example docker> repository would be helpful