Be more in sync with original `__name__=="__main__"` chapter

When originally rewriting the text I modified the German translation of the original English text and, when done, I translated everything back to English. Some things got lost while doing that, which this commit fixes.

Also undo the changes of the previous commit.
This commit is contained in:
Nils Lindemann 2023-11-05 14:54:17 +01:00
parent a0c83b2ee3
commit 04c8adff3f
1 changed files with 11 additions and 11 deletions

View File

@ -57,7 +57,7 @@ In VS Code, you can now debug this application like this:
* Debugging begins. A box appears at the top with buttons, for example to continue debugging after a breakpoint or to end debugging.
* The FastAPI development server is starting, as you can see in the terminal that opens below.
* The FastAPI development server is starting, as you can see in the terminal that opens at the bottom.
* Now in `myapp.py`, for example on the last line of the function, add a breakpoint by clicking on the red dot that appears when you hover over the line number.
@ -87,7 +87,7 @@ Import `uvicorn` and run it directly:
### About `__name__ == "__main__"`
The main purpose of `__name__ == "__main__"` is to have a block of code that runs when your module (your source code file, here `myapp.py`) is run with:
The main purpose of `__name__ == "__main__"` is to have a block of code that is executed when your file is called with:
<div class="termy">
@ -97,7 +97,7 @@ $ python myapp.py
</div>
but which is not called when another module imports it, as in:
but which is not executed when another file imports it, as in:
```Python
from myapp import app
@ -105,7 +105,7 @@ from myapp import app
#### More details
If you run your module with:
If you run your file with:
<div class="termy">
@ -115,7 +115,7 @@ $ python myapp.py
</div>
then the internal variable `__name__` in your module, which is automatically created by Python, will have the string `"__main__"` as its value.
then the internal variable `__name__` in your file, which is automatically created by Python, will have the string `"__main__"` as its value.
So the section:
@ -123,13 +123,13 @@ So the section:
uvicorn.run(app, host="0.0.0.0", port=8000)
```
is executed.
will be executed.
---
This will not happen if you import this module (this file).
This won't happen if you import that module (file).
So if you have another module `importer.py` with:
So if you have another file `importer.py` with:
```Python
from myapp import app
@ -137,7 +137,7 @@ from myapp import app
# More code here
```
in this case, the automatically created variable `__name__` in `myapp.py` will not have the value `"__main__"`.
in that case, the automatically created variable `__name__` in `myapp.py` will not have the value `"__main__"`.
So the line:
@ -145,10 +145,10 @@ So the line:
uvicorn.run(app, host="0.0.0.0", port=8000)
```
is not executed.
will not be executed.
!!! info
For more information, see the <a href="https://docs.python.org/3/library/__main__.html" class="external-link" target="_blank">official Python documentation</a>.
For more information, check the <a href="https://docs.python.org/3/library/__main__.html" class="external-link" target="_blank">official Python docs</a>.
### Run the code with the debugger