cpython actually makes sure the newly chained exception doesn't create
a cycle (even indirectly); see _PyErr_SetObject use of "Floyd's cycle
detection algo". We'll go for the simpler solution of just checking
one level deep until it's clear we need to do more.
Closes: #7414
\r\n files must be working due to micropython's built in handling of
text-mode files, I didn't implement it.
\r-only (old mac text-mode files) are explicitly not supported by
the toml format.
While working on adding 0o and 0b literals (which aren't added yet and
may not be) I realized that my approach would likely cause a problem
for the value "0"
* use a virtual fat filesystem during the test
* this makes the file I/O part more closely patch runtime which is nice
* side-steps the need to add a special function for testing
* but test still can't be run on a device, because the vfs calls
are incompatible, and you intentionally can't remount "/" anyway
* and side-steps problems with storing 'bad' toml files
This adds the __cause__, __context__ and __suppress_context__
members to exception objects and makes e.g., `raise exc from cause`
set them in the same way as standard Python.
A task that has been sent to the loop's exception handler due to being
re-scheduled twice will then subsequently cause a `raise None` if it is
subsequently awaited. In the C version of task.py, this causes a segfault.
This makes the await succeed (via raising StopIteration instead).
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This also depends on https://github.com/adafruit/Adafruit_CircuitPython_Ticks/pull/8
otherwise adafruit_ticks is unimportable and the tests are just skipped.
Several of the tests fail, and one runs forever instead of terminating.
We should fix our asyncio until the tests patch, then incorporate this
change.
.. it needs to operate on a FILE* rather than FIL depending on
the build.
Note that this is comparing output to expected, not to cpython dotenv
package. Because run-tests.py starts the CPython interpreter with the
'-S' (skip site initialization) flag, pip-installed packages are
not available for import inside a test file. Instead, the exp
file is generated manually:
```
circuitpython/tests$ python3 circuitpython/dotenv_test.py > circuitpython/dotenv_test.py.exp
```
Unfortunately, the test fails on test e15:
```diff
FAILURE /home/jepler/src/circuitpython/tests/results/circuitpython_dotenv_test.py
--- /home/jepler/src/circuitpython/tests/results/circuitpython_dotenv_test.py.exp 2022-10-04 09:48:16.307703128 -0500
+++ /home/jepler/src/circuitpython/tests/results/circuitpython_dotenv_test.py.out 2022-10-04 09:48:16.307703128 -0500
@@ -14,7 +14,7 @@
line
e13 e13value
e14 None
-e15 e15value
+e15 None
e16 #
e17 def
e18 #has a hash
```
Formerly, py/formatfloat would print whole numbers inaccurately with
nonzero digits beyond the decimal place. This resulted from its strategy
of successive scaling of the argument by 0.1 which cannot be exactly
represented in floating point. The change in this commit avoids scaling
until the value is smaller than 1, so all whole numbers print with zero
fractional part.
Fixes issue #4212.
Signed-off-by: Dan Ellis dan.ellis@gmail.com
This allows you to list and explore connected USB devices. It
only stubs out the methods to communicate to endpoints. That will
come in a follow up once TinyUSB has it. (It's in progress.)
Related to #5986
