Lerking/micropython
1
0
Fork 0
mirror of https://github.com/micropython/micropython.git synced 2026-01-04 19:20:22 +01:00
Code Issues Actions 52 Packages Projects Releases Wiki Activity

all: Remove Python 2.7 support.

Browse Source 
Python 2.7 has been EOL since January 2020.

Ubuntu oldoldlts (Focal Fossa, 20.04) has Python 3.8.  Debian oldoldstable
(Buster, from 2019) has Python 3.7.  RHEL 8 (from 2019) has Python 3.6.

It's easier than ever to install a modern Python using uv.

Given this, it seems like a fine idea to drop Python 2.7 support.

Even though the build is not tested on Python as old as 3.3, I left
comments stating that "3.3+" is the baseline Python version.  However, it
might make sense to bump this to e.g., 3.10, the oldest Python 3 version
used during CI. Or, using uv or another method actually test on the oldest
Python interpreter that is desirable to support (uv goes back to Python 3.7
easily; in October 2025, the oldest supported Python interpreter version
will be 3.10)

Signed-off-by: Jeff Epler <jepler@gmail.com>
This commit is contained in:
Jeff Epler
2025-08-08 10:09:13 -05:00
committed by Damien George
parent d441788975
commit f0c6f16b9e
12 changed files with 35 additions and 97 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
tools/ci.sh
View File

@@ -130,15 +130,12 @@ function ci_code_size_build {
function ci_mpy_format_setup {
sudo apt-get update
sudo apt-get install python2.7
sudo pip3 install pyelftools
python2.7 --version
python3 --version
}
function ci_mpy_format_test {
# Test mpy-tool.py dump feature on bytecode
python2.7 ./tools/mpy-tool.py -xd tests/frozen/frozentest.mpy
python3 ./tools/mpy-tool.py -xd tests/frozen/frozentest.mpy
# Build MicroPython
@@ -683,12 +680,11 @@ function ci_unix_coverage_run_native_mpy_tests {
function ci_unix_32bit_setup {
sudo dpkg --add-architecture i386
sudo apt-get update
sudo apt-get install gcc-multilib g++-multilib libffi-dev:i386 python2.7
sudo apt-get install gcc-multilib g++-multilib libffi-dev:i386
sudo pip3 install setuptools
sudo pip3 install pyelftools
sudo pip3 install ar
gcc --version
python2.7 --version
python3 --version
}
@@ -706,13 +702,12 @@ function ci_unix_coverage_32bit_run_native_mpy_tests {
}
function ci_unix_nanbox_build {
# Use Python 2 to check that it can run the build scripts
ci_unix_build_helper PYTHON=python2.7 VARIANT=nanbox CFLAGS_EXTRA="-DMICROPY_PY_MATH_CONSTANTS=1"
ci_unix_build_helper VARIANT=nanbox CFLAGS_EXTRA="-DMICROPY_PY_MATH_CONSTANTS=1"
ci_unix_build_ffi_lib_helper gcc -m32
}
function ci_unix_nanbox_run_tests {
ci_unix_run_tests_full_no_native_helper nanbox PYTHON=python2.7
ci_unix_run_tests_full_no_native_helper nanbox
}
function ci_unix_longlong_build {

46
tools/mpy-tool.py
View File

@@ -24,40 +24,20 @@
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
# Python 2/3/MicroPython compatibility code
from __future__ import print_function
import sys
if sys.version_info[0] == 2:
from binascii import hexlify as hexlify_py2
str_cons = lambda val, enc=None: str(val)
bytes_cons = lambda val, enc=None: bytearray(val)
is_str_type = lambda o: isinstance(o, str)
is_bytes_type = lambda o: type(o) is bytearray
is_int_type = lambda o: isinstance(o, int) or isinstance(o, long) # noqa: F821
def hexlify_to_str(b):
x = hexlify_py2(b)
return ":".join(x[i : i + 2] for i in range(0, len(x), 2))
elif sys.version_info[0] == 3: # Also handles MicroPython
from binascii import hexlify
str_cons = str
bytes_cons = bytes
is_str_type = lambda o: isinstance(o, str)
is_bytes_type = lambda o: isinstance(o, bytes)
is_int_type = lambda o: isinstance(o, int)
def hexlify_to_str(b):
return str(hexlify(b, ":"), "ascii")
# end compatibility code
import sys
import struct
import sys
from binascii import hexlify
str_cons = str
bytes_cons = bytes
is_str_type = lambda o: isinstance(o, str)
is_bytes_type = lambda o: isinstance(o, bytes)
is_int_type = lambda o: isinstance(o, int)
def hexlify_to_str(b):
return str(hexlify(b, ":"), "ascii")
sys.path.append(sys.path[0] + "/../py")
import makeqstrdata as qstrutil

6
tools/pydfu.py
View File

@@ -75,11 +75,7 @@ __verbose = None
# USB DFU interface
__DFU_INTERFACE = 0
# Python 3 deprecated getargspec in favour of getfullargspec, but
# Python 2 doesn't have the latter, so detect which one to use
getargspec = getattr(inspect, "getfullargspec", getattr(inspect, "getargspec", None))
if "length" in getargspec(usb.util.get_string).args:
if "length" in inspect.getfullargspec(usb.util.get_string).args:
# PyUSB 1.0.0.b1 has the length argument
def get_string(dev, index):
return usb.util.get_string(dev, 255, index)