Python - module 'time' has no attribute 'clock'

[MatejBosansky]

I tired to run Python examples but for all of them I received error

12.48inch e-paper B Demo...
EPD init...
set wiringPi lib success !!!
clearing...
Traceback (most recent call last):
  File "/home/pi/eink2/12.48inch_e-Paper_Module_Code/python/examples/epd_12in48B_test.py", line 29, in <module>
    epd.clear()
  File "/home/pi/eink2/12.48inch_e-Paper_Module_Code/python/lib/epd12in48b.py", line 231, in clear
    start = time.clock()
AttributeError: module 'time' has no attribute 'clock'

Looks like your epd12in48b.py driver is not compatible with latest python. Based on replies in
https://stackoverflow.com/questions/58569361/attributeerror-module-time-has-no-attribute-clock-in-python-3-8
time.clock() was removed in 3.8 Python version

[SSYYL]

@MatejBosansky
time.perf_counter() has been used to replace it, please try it, thanks :)

[MatejBosansky]

@SSYYL I pulled updated library into new folder. Now I received different error.

Traceback (most recent call last):
  File "/home/pi/eink3/12.48inch_e-Paper_Module_Code/python/examples/epd_12in48B_V2_test.py", line 11, in <module>
    import epd12in48b_V2
  File "/home/pi/eink3/12.48inch_e-Paper_Module_Code/python/lib/epd12in48b_V2.py", line 30, in <module>
    import epdconfig
  File "/home/pi/eink3/12.48inch_e-Paper_Module_Code/python/lib/epdconfig.py", line 65, in <module>
    spi = CDLL(so_filename)
  File "/usr/lib/python3.9/ctypes/__init__.py", line 374, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: /home/pi/eink3/12.48inch_e-Paper_Module_Code/python/lib/DEV_Config.so: wrong ELF class: ELFCLASS64

[SSYYL]

@MatejBosansky , Have you installed bcm2835? If not, please install it:

wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.71.tar.gz 
tar zxvf bcm2835-1.71.tar.gz
cd bcm2835-1.71/ 
sudo ./configure && sudo make && sudo make check && sudo make install

[MatejBosansky]

@SSYYL I had on this Raspi machine project with 7.5inch e-ink model where I installed this library and it worked fine. So for 12inch model I skipped this step. However I installed it again according to wiki.

wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.71.tar.gz
tar zxvf bcm2835-1.71.tar.gz 
cd bcm2835-1.71/
sudo ./configure && sudo make && sudo make check && sudo make install

But it failed again

pi@raspberrypi:~/eink3/12.48inch_e-Paper_Module_Code/python/examples $ python3 epd_12in48B_V2_test.py
Traceback (most recent call last):
  File "/home/pi/eink3/12.48inch_e-Paper_Module_Code/python/examples/epd_12in48B_V2_test.py", line 11, in <module>
    import epd12in48b_V2
  File "/home/pi/eink3/12.48inch_e-Paper_Module_Code/python/lib/epd12in48b_V2.py", line 30, in <module>
    import epdconfig
  File "/home/pi/eink3/12.48inch_e-Paper_Module_Code/python/lib/epdconfig.py", line 65, in <module>
    spi = CDLL(so_filename)
  File "/usr/lib/python3.9/ctypes/__init__.py", line 374, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: /home/pi/eink3/12.48inch_e-Paper_Module_Code/python/lib/DEV_Config.so: wrong ELF class: ELFCLASS64

Just FYI, after my first report in that pull I edited epd12in48b_V2.py to just remove of using time.clock() since it served only for logging and then it worked fine. Looks like changes DEV_Config.so caused this issue.

attaching installation

pi@raspberrypi:~ $ wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.71.tar.gz
--2022-11-28 10:30:50--  http://www.airspayce.com/mikem/bcm2835/bcm2835-1.71.tar.gz
Prevádza sa www.airspayce.com (www.airspayce.com) na IP adresu... 192.185.48.187
Pripájanie k www.airspayce.com (www.airspayce.com)|192.185.48.187|:80... pripojené.
HTTP požiadavka odoslaná, čakám na odpoveď... 200 OK
Dĺžka:  276152 (270K) [application/x-gzip]
Ukladá sa do: `bcm2835-1.71.tar.gz'

bcm2835-1.71.tar.gz           100%[=================================================>] 269,68K   539KB/s    za 0,5s

2022-11-28 10:30:51 (539 KB/s) - `bcm2835-1.71.tar.gz' uložené [276152/276152]

pi@raspberrypi:~ $ tar zxvf bcm2835-1.71.tar.gz
bcm2835-1.71/
bcm2835-1.71/configure.ac
bcm2835-1.71/COPYING
bcm2835-1.71/examples/
bcm2835-1.71/examples/spi/
bcm2835-1.71/examples/spi/spi.c
bcm2835-1.71/examples/input/
bcm2835-1.71/examples/input/input.c
bcm2835-1.71/examples/spiram/
bcm2835-1.71/examples/spiram/spiram.h
bcm2835-1.71/examples/spiram/spiram_test.c
bcm2835-1.71/examples/spiram/spiram.c
bcm2835-1.71/examples/event/
bcm2835-1.71/examples/event/event.c
bcm2835-1.71/examples/pwm/
bcm2835-1.71/examples/pwm/pwm.c
bcm2835-1.71/examples/gpio/
bcm2835-1.71/examples/gpio/gpio.c
bcm2835-1.71/examples/blink/
bcm2835-1.71/examples/blink/blink.c
bcm2835-1.71/examples/spin/
bcm2835-1.71/examples/spin/spin.c
bcm2835-1.71/examples/i2c/
bcm2835-1.71/examples/i2c/i2c.c
bcm2835-1.71/config.guess
bcm2835-1.71/NEWS
bcm2835-1.71/depcomp
bcm2835-1.71/configure
bcm2835-1.71/aclocal.m4
bcm2835-1.71/compile
bcm2835-1.71/INSTALL
bcm2835-1.71/Makefile.in
bcm2835-1.71/missing
bcm2835-1.71/config.sub
bcm2835-1.71/Makefile.am
bcm2835-1.71/ChangeLog
bcm2835-1.71/README
bcm2835-1.71/install-sh
bcm2835-1.71/config.h.in
bcm2835-1.71/src/
bcm2835-1.71/src/test.c
bcm2835-1.71/src/bcm2835.h
bcm2835-1.71/src/bcm2835.c
bcm2835-1.71/src/Makefile.in
bcm2835-1.71/src/Makefile.am
bcm2835-1.71/ltmain.sh
bcm2835-1.71/AUTHORS
bcm2835-1.71/doc/
bcm2835-1.71/doc/Doxyfile.in
bcm2835-1.71/doc/Makefile.in
bcm2835-1.71/doc/Makefile.am
bcm2835-1.71/test-driver
pi@raspberrypi:~ $ cd bcm2835-1.71/
pi@raspberrypi:~/bcm2835-1.71 $ sudo ./configure && sudo make && sudo make check && sudo make install
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /usr/bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether make supports the include directive... yes (GNU style)
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking whether gcc understands -c and -o together... yes
checking dependency style of gcc... gcc3
checking for clock_gettime in -lrt... yes
checking for doxygen... no
configure: WARNING: Doxygen not found - continuing without Doxygen support
checking for ranlib... ranlib
checking for gcc... (cached) gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gcc option to accept ISO C89... (cached) none needed
checking whether gcc understands -c and -o together... (cached) yes
checking dependency style of gcc... (cached) gcc3
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating src/Makefile
config.status: creating doc/Makefile
config.status: creating config.h
config.status: executing depfiles commands
make  all-recursive
make[1]: Entering directory '/home/pi/bcm2835-1.71'
Making all in src
make[2]: Entering directory '/home/pi/bcm2835-1.71/src'
gcc -DHAVE_CONFIG_H -I. -I..     -g -O2 -MT bcm2835.o -MD -MP -MF .deps/bcm2835.Tpo -c -o bcm2835.o bcm2835.c
mv -f .deps/bcm2835.Tpo .deps/bcm2835.Po
rm -f libbcm2835.a
ar cru libbcm2835.a bcm2835.o
ar: `u' modifier ignored since `D' is the default (see `U')
ranlib libbcm2835.a
make[2]: Leaving directory '/home/pi/bcm2835-1.71/src'
Making all in doc
make[2]: Entering directory '/home/pi/bcm2835-1.71/doc'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/home/pi/bcm2835-1.71/doc'
make[2]: Entering directory '/home/pi/bcm2835-1.71'
make[2]: Leaving directory '/home/pi/bcm2835-1.71'
make[1]: Leaving directory '/home/pi/bcm2835-1.71'
Making check in src
make[1]: Entering directory '/home/pi/bcm2835-1.71/src'
make  test
make[2]: Entering directory '/home/pi/bcm2835-1.71/src'
gcc -DHAVE_CONFIG_H -I. -I..     -g -O2 -MT test.o -MD -MP -MF .deps/test.Tpo -c -o test.o test.c
mv -f .deps/test.Tpo .deps/test.Po
gcc  -g -O2   -o test test.o ./libbcm2835.a -lrt
make[2]: Leaving directory '/home/pi/bcm2835-1.71/src'
make  check-TESTS
make[2]: Entering directory '/home/pi/bcm2835-1.71/src'
make[3]: Entering directory '/home/pi/bcm2835-1.71/src'
PASS: test
============================================================================
Testsuite summary for bcm2835 1.71
============================================================================
# TOTAL: 1
# PASS:  1
# SKIP:  0
# XFAIL: 0
# FAIL:  0
# XPASS: 0
# ERROR: 0
============================================================================
make[3]: Leaving directory '/home/pi/bcm2835-1.71/src'
make[2]: Leaving directory '/home/pi/bcm2835-1.71/src'
make[1]: Leaving directory '/home/pi/bcm2835-1.71/src'
Making check in doc
make[1]: Entering directory '/home/pi/bcm2835-1.71/doc'
make[1]: Nothing to be done for 'check'.
make[1]: Leaving directory '/home/pi/bcm2835-1.71/doc'
make[1]: Entering directory '/home/pi/bcm2835-1.71'
make[1]: Leaving directory '/home/pi/bcm2835-1.71'
Making install in src
make[1]: Entering directory '/home/pi/bcm2835-1.71/src'
make[2]: Entering directory '/home/pi/bcm2835-1.71/src'
 /usr/bin/mkdir -p '/usr/local/lib'
 /usr/bin/install -c -m 644  libbcm2835.a '/usr/local/lib'
 ( cd '/usr/local/lib' && ranlib libbcm2835.a )
 /usr/bin/mkdir -p '/usr/local/include'
 /usr/bin/install -c -m 644 bcm2835.h '/usr/local/include'
make[2]: Leaving directory '/home/pi/bcm2835-1.71/src'
make[1]: Leaving directory '/home/pi/bcm2835-1.71/src'
Making install in doc
make[1]: Entering directory '/home/pi/bcm2835-1.71/doc'
make[2]: Entering directory '/home/pi/bcm2835-1.71/doc'
make[2]: Nothing to be done for 'install-exec-am'.
make[2]: Nothing to be done for 'install-data-am'.
make[2]: Leaving directory '/home/pi/bcm2835-1.71/doc'
make[1]: Leaving directory '/home/pi/bcm2835-1.71/doc'
make[1]: Entering directory '/home/pi/bcm2835-1.71'
make[2]: Entering directory '/home/pi/bcm2835-1.71'
make[2]: Nothing to be done for 'install-exec-am'.
make[2]: Nothing to be done for 'install-data-am'.
make[2]: Leaving directory '/home/pi/bcm2835-1.71'
make[1]: Leaving directory '/home/pi/bcm2835-1.71'

[SSYYL]

@MatejBosansky, I found the problem.
It is that the .so files compiled on 32-bit and 64-bit systems are not compatible.
I will update it later, thanks.