Please make sure that Ghostscript is installed in Lambda

[goutam-ghosh]

Hi,
I am using ARN what you provided.
arn:aws:lambda:ap-south-1:764866452798:layer:ghostscript:1

But still giving the error below in lambda
"errorMessage": "Please make sure that Ghostscript is installed".

Please help me.

[KnupMan]

Hello, @goutam-ghosh I will try to help you. Can you confirm that you are executing your Ghostscript command from the path /opt/bin/gs?

[goutam-ghosh]

I am using python as a language. Yes I have already set the path in my lambda function environment variable.

…

On Fri, Dec 20, 2019, 7:31 PM Vitalii Sikora ***@***.***> wrote: Hello, I will try to help you. Can you confirm that you are executing your Ghostscript command from the path /opt/bin/gs? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#4?email_source=notifications&email_token=AKZRU3DS4XGUWSWSXZGACZ3QZTF4FA5CNFSM4J56AERKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEHM72XQ#issuecomment-567934302>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AKZRU3A3CDJ6WFHN3RO6BP3QZTF4FANCNFSM4J56AERA> .

[KnupMan]

@goutam-ghosh Which version of Python do you use?

[goutam-ghosh]

I am using python 3.6.

…

On Fri, Dec 20, 2019, 7:59 PM Vitalii Sikora ***@***.***> wrote: @goutam-ghosh <https://github.com/goutam-ghosh> Which version of Python do you use? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#4?email_source=notifications&email_token=AKZRU3H63LXMHVATK7AMINTQZTJDDA5CNFSM4J56AERKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEHNCBZQ#issuecomment-567943398>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AKZRU3HVMLMCSAKUAHPVDO3QZTJDDANCNFSM4J56AERA> .

[KnupMan]

@goutam-ghosh Can you please provide the code sample you are trying to run? I need more information on that to help you solve an issue

[goutam-ghosh]

@KnupMan
I am using camelot library. So camelot library depends on ghostscript.
sample code below:

    import camelot
    import subprocess, os
    os.environ["PATH"] = os.environ["PATH"] + ":/opt/bin/gs"
    print (os.environ["PATH"])
    tables = camelot.read_pdf("./example.pdf")
    tables[0].df.to_json("./sample1.json")

[vladholubiev]

@goutam-ghosh did you try instead of os.environ["PATH"] = os.environ["PATH"] + ":/opt/bin/gs" writing os.environ["PATH"] = os.environ["PATH"] + ":/opt/bin" ?

[goutam-ghosh]

@vladgolubev
given same error

Modified code below

import camelot
import subprocess, os
os.environ["PATH"] = os.environ["PATH"] + ":/opt/bin"
print (os.environ["PATH"])
tables = camelot.read_pdf("./example.pdf")
tables[0].df.to_json("./sample1.json")

[vladholubiev]

@goutam-ghosh please open issue in the camelot repository, this has nothing to do with the Lambda layer. This layer just simply provides a compiled library, it's not responsible for other libraries and the way they decide to load ghostscript

[goutam-ghosh]

@vladgolubev This is problem in lambda ghostscript layer. Because I have already check it locally. It is working fine locally.
In local I have installed the ghostscript.

[vladholubiev]

@goutam-ghosh the only job of this layer is to provide a Ghostscript binary which it does

I'm not familiar with Python, maybe there is a specific way how do you tell Python to find that binary in a non-default path

You could try running smth like this inside Lambda to see that the binary is really there and it's working

import subprocess
subprocess.run(["/opt/bin/gs", "--version"])

[goutam-ghosh]

@vladgolubev
giving below response

Response:
null

Request ID:
"7a3f4e23-6f5f-4747-a580-67583b09929c"

Function Logs:
START RequestId: 7a3f4e23-6f5f-4747-a580-67583b09929c Version: $LATEST
END RequestId: 7a3f4e23-6f5f-4747-a580-67583b09929c
REPORT RequestId: 7a3f4e23-6f5f-4747-a580-67583b09929c Duration: 92.31 ms Billed Duration: 100 ms Memory Size: 1216 MB Max Memory Used: 70 MB Init Duration: 1.45 ms

[vladholubiev]

@goutam-ghosh could you please log the subprocess.run(["/opt/bin/gs", "--version"]) response?

[goutam-ghosh]

@vladgolubev It is given null response.

[vladholubiev]

@goutam-ghosh could you please print what subprocess.run function returns?