env parameter of cdk.Stack constructor seems to be ignored

Describe the bug env parameter of cdk.Stack constructor seems to be ignored. Apologies if I overlooked something obvious.

To Reproduce

1. Initialize a new python CDK project cdk init --language python

2. ./cdk_test/cdk_test_stack.py: initialize any construct/resource in the sample stack class; e.g. sns.Topic(self, 'CdkTestTopic')

3. app.py: initialize the stack with an explicit region that differs from your default; e.g.

app = cdk.App()
env = cdk.Environment(region='us-east-2')
stack = CdkTestStack(app, 'my-cdk-test', env=env)

Expected behavior Relevant cdk commands that interact with CloudFormation (e.g., diff, deploy, destroy, etc.) should operate on the region specified above in app.py. In my case, they did not.

Version:

• OS: cpe:/o:fedoraproject:fedora:30
• Programming Language: Python 3.7.3
• CDK Version: 0.34.0 (build 523807c)

[made2591]

I think this is discussed in #2866 - by the way, a temporary fix should be already present (line 515) here) … but I didn’t understand exactly why it doesn’t work 🤔

[shearn89]

Just for future googlers - I just bumped into this on CDK 2.8. I was referencing the region/account passed in via env as self.env.region in my stack. Turns out that you need to reference them as self.region! Took me a few minutes to work out, doh!