is there a way I can debug python starlark ipython for examp Pulumi Community #python

is there a way I can debug python starlark ? ipyth...

bland-lamp-16797

04/22/2020, 4:51 PM

is there a way I can debug python starlark ? ipython for example or any remote debugging? I would like to know why

dns_name

pulumi_gcp.dns.ManagedZone

is class

pulumi.output.Output

and how to convert it to

str()

so I can use it later

lemon-agent-27707

04/22/2020, 5:00 PM

I'd start by reading about Inputs, Outputs, and .Apply() https://www.pulumi.com/docs/intro/concepts/programming-model/#outputs

lemon-agent-27707

04/22/2020, 5:00 PM

(this does not answer your debugging question but is important to understand when working with pulumi)

lemon-agent-27707

04/22/2020, 5:03 PM

Fundamentally, working with the cloud is asynchronous. Many of these values that you see as

Output

are not known at runtime. They become eventually available as cloud resources are created. Because of this, you need to use

.Apply()

to execute callbacks when those resources become available.

.Apply()

creates a new asynchronous future that can be passed as input to another cloud resource. For instance you can create a VPC, and it will have a subnetID output that can be passed as input to create an EC2 instance or virtual machine.

❤️ 1

bland-lamp-16797

04/23/2020, 6:47 AM

hmm but is there a terminal where I can see the output for debugging? I'm missing

terraform console

ipython

? Here is good ex: lets say I have this decliration `

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b81_zone = dns.ManagedZone("b81-root", description="Root of b81.dev", dns_name="b81.dev.", labels={"managed_by": "pulumi"})

and I want to use

b81_zone.dns_name

but I simply can't get it 😞 The closest that I got is `

Copy code

b81_zone.dns_name.apply(lambda dns_name: dns_name)

but it still returns Output class. I just need a terminal or a way to debug this class

lemon-agent-27707

04/23/2020, 8:07 AM

What do you want to use it for? Do you want to consume it from outside the program? If so you can use a stack output https://www.pulumi.com/docs/intro/concepts/programming-model/#stack-outputs

lemon-agent-27707

04/23/2020, 8:07 AM

You can also do print statements from within

.Apply

calls.

bland-lamp-16797

04/23/2020, 9:17 AM

now I feel dumb because I can't print simple attribute 😞 `

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print(b81_zone.dns_name.apply(lambda foo: f"{foo}"))

is not working 😞

bland-lamp-16797

04/23/2020, 10:39 AM

ok, now I get it 😞

b81_zone.dns_name.apply(lambda c: print(c))

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