"dyld: Library not loaded: LibMMBlib.dylib" in python 3.7.11 on MacOS 10.14.6
Posted: Sat Oct 23, 2021 6:06 pm
Hi there,
I've been using MMB to fold ssDNA into their 3D structure, many thanks for developing such a useful tool! Recently I would like to run MMB in a python environment and I came across an error regarding loading the dylib files.
Platform info: Python 3.7.11; MacOS 10.14.6 (Mojave).
Problem description:
1. First of all, I can successfully run the MMB program in command line as below, following the MMB tutorial document:
"
$ export DYLD_LIBRARY_PATH=/Users/taoliu/Desktop/software/Installer.3_0.OSX/lib
$ /Users/taoliu/Desktop/software/Installer.3_0.OSX/bin/MMB -c commands.run_fold.txt
"
This runs with no error /cheers.
2. Then I try to do the same thing in a python environment by using the "os" package, as shown in the following simple python script:
myTestMMB.py:
"
import os
os.environ["DYLD_LIBRARY_PATH"] = '/Users/taoliu/Desktop/software/Installer.3_0.OSX/lib'
os.system('/Users/taoliu/Desktop/software/Installer.3_0.OSX/bin/MMB -c commands.run_fold.txt')
"
And to be safe, I also have added the environment variable DYLD_LIBRARY_PATH to the .bash_profile.
However, the python script above cannot run successfully and always gives such an error:
"
dyld: Library not loaded: libMMBlib.dylib
Referenced from: /Users/taoliu/Desktop/software/Installer.3_0.OSX/bin/MMB
Reason: image not found
Process finished with exit code 0
"
Furthermore, if I ask python to show me the environment variable by "print(os.environ["DYLD_LIBRARY_PATH"]), it outputs the correct path.
Therefore, it seems like the MMB executable somehow cannot find the library, even if the "libMMBlib.dylib" and other .dylib files do exist in the "/Users/taoliu/Desktop/software/Installer.3_0.OSX/lib" directory.
I wonder if anyone has experience in running MMB in a python environment on MacOS? Any suggestions or guidance is really appreciated, thank you very much! Please let me know if you need any other information to help with the debugging.
I've been using MMB to fold ssDNA into their 3D structure, many thanks for developing such a useful tool! Recently I would like to run MMB in a python environment and I came across an error regarding loading the dylib files.
Platform info: Python 3.7.11; MacOS 10.14.6 (Mojave).
Problem description:
1. First of all, I can successfully run the MMB program in command line as below, following the MMB tutorial document:
"
$ export DYLD_LIBRARY_PATH=/Users/taoliu/Desktop/software/Installer.3_0.OSX/lib
$ /Users/taoliu/Desktop/software/Installer.3_0.OSX/bin/MMB -c commands.run_fold.txt
"
This runs with no error /cheers.
2. Then I try to do the same thing in a python environment by using the "os" package, as shown in the following simple python script:
myTestMMB.py:
"
import os
os.environ["DYLD_LIBRARY_PATH"] = '/Users/taoliu/Desktop/software/Installer.3_0.OSX/lib'
os.system('/Users/taoliu/Desktop/software/Installer.3_0.OSX/bin/MMB -c commands.run_fold.txt')
"
And to be safe, I also have added the environment variable DYLD_LIBRARY_PATH to the .bash_profile.
However, the python script above cannot run successfully and always gives such an error:
"
dyld: Library not loaded: libMMBlib.dylib
Referenced from: /Users/taoliu/Desktop/software/Installer.3_0.OSX/bin/MMB
Reason: image not found
Process finished with exit code 0
"
Furthermore, if I ask python to show me the environment variable by "print(os.environ["DYLD_LIBRARY_PATH"]), it outputs the correct path.
Therefore, it seems like the MMB executable somehow cannot find the library, even if the "libMMBlib.dylib" and other .dylib files do exist in the "/Users/taoliu/Desktop/software/Installer.3_0.OSX/lib" directory.
I wonder if anyone has experience in running MMB in a python environment on MacOS? Any suggestions or guidance is really appreciated, thank you very much! Please let me know if you need any other information to help with the debugging.