🌐 Mailman 3 December 2020 - Python-list - python.org

Re: Which method to check if string index is queal to character.
by Bischoop Dec. 29, 2020

Dec. 29, 2020

On 2020-12-28, Stefan Ram <ram(a)zedat.fu-berlin.de> wrote: > > "@" in s > That's what I thought. >>I want check if string is a valid email address. > > I suggest to first try and define "valid email address" in English. > > A valid email address consists of an email prefix and an email domain, both in acceptable formats. The prefix appears to the left of the @ symbol. The domain appears to the right of the @ symbol. For example, in the address example(a)mail.com, "example" is the email prefix, and "mail.com" is the email domain. -- Thanks

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Re: Which method to check if string index is queal to character.
by Bischoop Dec. 29, 2020

Dec. 29, 2020

On 2020-12-28, Michael Torrie <torriem(a)gmail.com> wrote: > On 12/28/20 10:46 AM, Marco Sulla wrote: >> On Mon, 28 Dec 2020 at 17:37, Bischoop <Bischoop(a)vimart.net> wrote: >>> >>> I'd like to check if there's "@" in a string and wondering if any method >>> is better/safer than others. I was told on one occasion that I should >>> use is than ==, so how would be on this example. >>> >>> s = 'this(a)mail.is' >> >> You could do simply >> >> if "@" in s: >> >> but probably what you really want is a regular expression. > > https://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-addr… > Interested article. -- Thanks

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Which method to check if string index is queal to character.
by Bischoop Dec. 28, 2020

Dec. 28, 2020

I'd like to check if there's "@" in a string and wondering if any method is better/safer than others. I was told on one occasion that I should use is than ==, so how would be on this example. s = 'this(a)mail.is' I want check if string is a valid email address. code ''' import time email = "ten(a)mail.tu" start_time = time.time() for i in range(len(email)): print('@' in email[i]) print ("My program took", time.time() - start_time, "to run") print('----------') start_time = time.time() for i in range(len(email)): print(email[i] == '@') print ("My program took", time.time() - start_time, "to run") print('----------') start_time = time.time() if '@' in email: print('True') print ("My program took", time.time() - start_time, "to run") '''

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kivy,,, assigning global variable
by Sadaka Technology Dec. 28, 2020

Dec. 28, 2020

class main(..): def init.....: super..... button = Button(on_release=self.on_click) def on_click(self,screen,*args) self.clear_widgets() if screen == '2nd': float = 2nd() elif screen == '1st': float = 1st() self.add_widget(float) class 2nd(...): string_text = StringProperty() def init.....: super..... Text = TextInput(text=self.string_text) button=Button(on_release=self.on_click) def on_click self.parent.on_click('1st') class 1st(...): ............ #my only issue is in class 2nd() how can I change the value of the variable string_text, if I am clearing widgets and adding widget again in parent class ( main()), then string_text will again equal to empty , I tried to add string_text variable in main() but the same issue I am getting, how can I save the string_text in 2nd() if am removing it and adding it again ?

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Debian testing and virtual environment error message
by songbird Dec. 27, 2020

Dec. 27, 2020

Simlar to Rich's asking about how to deal with python3.9 I'm not able to to get my virtual environment set up to work now and I'm not sure how to go about fixing this. As it is testing I may have broken it somehow but I do not know how to fix this. I asked on the Debian user mailing list and nobody had any response/ideas. Note, this isn't a production system and I don't mind it being temporarily broken, but I also would like to know what is going on and how to fix this sort of thing. I do have python-is-python3 package installed and there are no python2 programs anywhere on this system that I know of. When i run the command: ===== $ cd /home/me/src/salsa $ python -m venv env setting up virtual environment /home/me/src/salsa/env The virtual environment was not created successfully because ensurepip is not available. On Debian/Ubuntu systems, you need to install the python3-venv package using the following command. apt-get install python3-venv You may need to use sudo with that command. After installing the python3-venv package, recreate your virtual environment. Failing command: ['/home/me/src/salsa/env/bin/python', '-Im', 'ensurepip', '--upgrade', '--default-pip'] ===== The package mentioned is installed: ===== $ dpkg -l | grep python3-venv ii python3-venv 3.9.0-4 amd64 pyvenv-3 binary for python3 (default python3 version) ===== Also the following looks interesting but I'm not sure why there is no 3.9 version available: ===== $ dpkg -l | grep python-is ii python-is-python3 3.8.6-3 all symlinks /usr/bin/python to python3 # su - entered password # apt-get install python-is-python3 -t unstable Reading package lists... Done Building dependency tree Reading state information... Done python-is-python3 is already the newest version (3.8.6-3). 0 upgraded, 0 newly installed, 0 to remove and 250 not upgraded. ===== any ideas? :) thanks! songbird

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Re: Debian testing and virtual environment error message
by songbird Dec. 27, 2020

Dec. 27, 2020

Chris Angelico wrote: > On Mon, Dec 28, 2020 at 2:56 AM songbird <songbird(a)anthive.com> wrote: ...needed to pull a few more things from unstable... > Ah, yep, that makes sense. I was a tad concerned about the mismatch of > versions, but honestly, I don't think I've ever installed Python from > testing or unstable (unless I'm running the entire distro on testing). > It's much much easier and safer to keep the system Python untouched, > and then build my own from source; my "python3" command, at the > moment, runs 3.10 pre-alpha. it seems that if there is a dependency between these than it should have be declared so they won't migrate to testing independently. i'm not sure it is worth filing a bug about since the transition is not completed yet anyways. i run testing on my day to day system because i do want to find bugs before they make it to stable, especially for the things i use every day. i'm not using the testing distribution for hard production tasks so if it breaks and i do need to get on-line i have a few other different bootable partitions or even a USB stick just in case. songbird

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Re: Debian testing and virtual environment error message
by songbird Dec. 27, 2020

Dec. 27, 2020

Chris Angelico wrote: ok, i got it to work. i noticed that there was a 3.8 version of distutils that was not upgraded to 3.9 so once i specifically pulled that in from the unstable Debian distribution then it upgraded and my creation of a new virtual environment would work without errors. so for some reason there are some python packages in unstable that had not get gotten to testing. thanks for replying. :) for the record this was what i did: apt-get install python3-distutils -t unstable Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: libpython3-all-dbg (3.9.1-1) libpython3-all-dev (3.9.1-1) libpython3-dbg (3.9.1-1) libpython3-dev (3.9.1-1) libpython3-stdlib (3.9.1-1) python3 (3.9.1-1) python3-all (3.9.1-1) python3-all-dbg (3.9.1-1) python3-all-dev (3.9.1-1) python3-dbg (3.9.1-1) python3-dev (3.9.1-1) python3-lib2to3 (3.9.1-1) python3-minimal (3.9.1-1) python3-venv (3.9.1-1) Suggested packages: python3-doc (3.9.1-1) python3-tk (3.9.1-1) The following packages will be upgraded: libpython3-all-dbg (3.9.0-4 => 3.9.1-1) libpython3-all-dev (3.9.0-4 => 3.9.1-1) libpython3-dbg (3.9.0-4 => 3.9.1-1) libpython3-dev (3.9.0-4 => 3.9.1-1) libpython3-stdlib (3.9.0-4 => 3.9.1-1) python3 (3.9.0-4 => 3.9.1-1) python3-all (3.9.0-4 => 3.9.1-1) python3-all-dbg (3.9.0-4 => 3.9.1-1) python3-all-dev (3.9.0-4 => 3.9.1-1) python3-dbg (3.9.0-4 => 3.9.1-1) python3-dev (3.9.0-4 => 3.9.1-1) python3-distutils (3.8.6-1 => 3.9.1-1) python3-lib2to3 (3.8.6-1 => 3.9.1-1) python3-minimal (3.9.0-4 => 3.9.1-1) python3-venv (3.9.0-4 => 3.9.1-1) 15 upgraded, 0 newly installed, 0 to remove and 222 not upgraded. songbird

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Re: Debian testing and virtual environment error message
by songbird Dec. 27, 2020

Dec. 27, 2020

Chris Angelico wrote: ... > $ which python /usr/bin/python for both user and root looking at /usr/bin it looks like: lrwxrwxrwx 1 root root 7 Nov 3 03:20 python -> python3 lrwxrwxrwx 1 root root 9 Dec 6 05:36 python3 -> python3.9 -rwxr-xr-x 1 root root 5479736 Dec 8 02:51 python3.9 thanks, songbird

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Installing python3 modules
by Rich Shepard Dec. 26, 2020

Dec. 26, 2020

Running Slackware-14.2/x86_64 here. I'm trying to learn if any installed applications are still dependent on Python2 (version 2.7.17 installed) as its EOL is this coming Thursday and I want to clean out all Python2 modules and replace them with their Python3 versions (3.9 installed here). This raises several questions. First, I had to remove, reinstall, and upgrade pip. The pip web page says it's compatible with python2 and 3 through 3.8. Does this mean it still does not support Python3.9? Second, pip installed itself in /usr/lib64/python2/site-packages/, not the python3.9/site-packages/ directory. There's not a pip3 so how do I get pip and all other python modules in the python3.9/site-packages/ directory? As an occasional coder (for my own business uses) I'm far from an advanced python user. TIA, Rich

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Pyrebase auth
by Sadaka Technology Dec. 26, 2020

Dec. 26, 2020

I am using signup method: user_signup = auth.create_user_with_email_and_password(email, password) and my firebase rules are: { "rules": { ".read": false, ".write": false, "$localId": { ".write": "auth.uid === $localId", ".read": "auth.uid === $localId" } } } I used: data = {"item1":"hat","item2":"car"} results = db.child("users").update(data, user['idToken']) the only way to patch (update) is to use: ".read": true, ".write": true, which means that anyone can read or write in my database where I only want the user to write or read if his idtoken or localid is authorized, even if data is outside his region for ex: database: "number_of_users":"2" "userlocalid": {"item1":"hat"} {"item2":"car"}

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