Re: Best Practice Virtual Environment
On 10/5/2024 4:27 PM, Ulrich Goebel via Python-list wrote: Hi, I learned to use virtual environments where ever possible, and I learned to pip install the required packages there. That works quite nice at home. Now I come to deploy a Python script on a debian linux server, making it usable for a couple of users there. Debian (or even Python3 itself) doesn't allow to pip install required packages system wide, so I have to use virtual environments even there. But is it right, that I have to do that for every single user? Can someone give me a hint to find an howto for that? One alternative is to install a different version of Python without replacing the system's version. For example, if the system uses Python 3.11, install Python 3.12. That way there is no risk of breaking system operation, and you can install what you like where you like. -- https://mail.python.org/mailman/listinfo/python-list
Re: Best Practice Virtual Environment
Am Sat, Oct 05, 2024 at 10:27:33PM +0200 schrieb Ulrich Goebel via Python-list: > Debian (or even Python3 itself) doesn't allow to pip install required > packages system wide, so I have to use virtual environments even there. But > is it right, that I have to do that for every single user? > > Can someone give me a hint to find an howto for that? AFAICT the factual consensus appears to be install modules as packaged by the system you won't need anything else If you do find how to cleanly install non-packaged modules in a system-wide way (even if that means installing every application into its own *system-wide* venv) - do let me know. Karsten -- GPG 40BE 5B0E C98E 1713 AFA6 5BC0 3BEA AC80 7D4F C89B -- https://mail.python.org/mailman/listinfo/python-list
Best Practice Virtual Environment
Hi, I learned to use virtual environments where ever possible, and I learned to pip install the required packages there. That works quite nice at home. Now I come to deploy a Python script on a debian linux server, making it usable for a couple of users there. Debian (or even Python3 itself) doesn't allow to pip install required packages system wide, so I have to use virtual environments even there. But is it right, that I have to do that for every single user? Can someone give me a hint to find an howto for that? Best regards Ulrich -- Ulrich Goebel -- https://mail.python.org/mailman/listinfo/python-list
How to check whether lip movement is significant using face landmarks in dlib?
I am trying to assess whether the lips of a person are moving too much while the mouth is closed (to conclude they are chewing). I try to assess the lip movement through landmarks (dlib) : Inspired by the mouth example ( https://github.com/mauckc/mouth-open/blob/master/detect_open_mouth.py#L17), and using it before the following function (as a primary condition for telling the person is chewing), I wrote the following function: def lips_aspect_ratio(shape): # grab the indexes of the facial landmarks for the lip (mStart, mEnd) = (61, 68) lip = shape[mStart:mEnd] print(len(lip)) # compute the euclidean distances between the two sets of # vertical lip landmarks (x, y)-coordinates # to reach landmark 68 I need to get lib[7] not lip[6] (while I get lip[7] I get IndexOutOfBoundError) A = dist.euclidean(lip[1], lip[6]) # 62, 68 B = dist.euclidean(lip[3], lip[5]) # 64, 66 # compute the euclidean distance between the horizontal # lip landmark (x, y)-coordinates C = dist.euclidean(lip[0], lip[4]) # 61, 65 # compute the lip aspect ratio mar = (A + B) / (2.0 * C) # return the lip aspect ratio return mar How to define an aspect ratio for the lips to conclude they are moving significantly? Is the mentioned function able to tell whether the lips are significantly moving while the mouth is closed? -- https://mail.python.org/mailman/listinfo/python-list
Re: Best Practice Virtual Environment
On 05Oct2024 22:27, Ulrich Goebel wrote: Debian (or even Python3 itself) doesn't allow to pip install required packages system wide, This is gnerally a good thing. You might modify a critical system-used package. But is it right, that I have to do that for every single user? No. Just make a shared virtualenv, eg in /usr/local or /opt somewhere. Have the script commence with: #!/path/to/the/shred/venv/bin/python and make it readable and executable. Problem solved. Cheers, Cameron Simpson -- https://mail.python.org/mailman/listinfo/python-list
