Duplicated exceptions for missing secrets

[sfc-gh-amiribel]

Checklist

• I have searched the existing issues for similar issues.
• I added a very descriptive title to this issue.
• I have provided sufficient information below to help reproduce this issue.

Summary

Whenever accessing st.secrets in an app, Streamlit raises exceptions in two different manners [see source]:

• using st.exception(...)
• raising an actual FileNotFoundError exception

This leads to two issues:

1. Duplicated exception messages being shown (even more, weirdly)
2. Makes it impossible to test if secrets exist without an exception to be written

Reproducible Code Example

token = None

try:
    if "TOKEN" in st.secrets:
        token = st.secrets["TOKEN"]
except FileNotFoundError:
    pass

if not token:
    token = st.text_input("Pass in your token!", type="password")

Steps To Reproduce

No response

Expected Behavior

Do not show any exception, since I'm trying to catch it. Basically, get rid of lines 212 and 213 in here!

streamlit/lib/streamlit/runtime/secrets.py

Lines 212 to 213 in 940bd5d

	if print_exceptions:
	st.error(err_msg)

Current Behavior

An exception message is hard-coded and shown regardless if I catch it

Is this a regression?

• Yes, this used to work in a previous version.

Debug info

• Streamlit version: 1.32.1
• Python version: 3.9
• Operating System: OSX
• Browser: Chrome

Additional Information

No response

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