Mailman 3 December 2022 - Python-list

>>> %matplotlib inline results in SyntaxError: invalid syntax
by Mike S Dec. 25, 2023

Dec. 25, 2023

I have installed Python 3.4.4 on XPSP3 and am trying to work my way through this tutorial. A Complete Tutorial on Ridge and Lasso Regression in Python http://www.analyticsvidhya.com/blog/2016/01/complete-tutorial-ridge-lasso-r… In Step 2 "Why Penalize the Magnitude of Coefficients?" we are shown this code: #Importing libraries. The same will be used throughout the article. import numpy as np import pandas as pd import random import matplotlib.pyplot as plt %matplotlib inline I get an error on the last line. I am running this code in Idle Python 3.4.4 Shell... Python 3.4.4 (v3.4.4:737efcadf5a6, Dec 20 2015, 19:28:18) [MSC v.1600 32 bit (Intel)] on win32 Type "copyright", "credits" or "license()" for more information. >>> import numpy as np >>> import pandas as pd >>> import random >>> import matplotlib.pyplot as plt >>> %matplotlib inline SyntaxError: invalid syntax What am I doing wrong? Suggested reading? TIA, Mike

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Re: How to add CC and BCC while sending mails using python
by akegb3＠gmail.com June 20, 2023

June 20, 2023

On Tuesday, September 30, 2008 8:00:16 AM UTC-8, Bernhard Walle wrote: > Hi, > > * cindy jones [2008-09-30 19:57]: > > > > Can someone tel me how to add cc's and bcc's while sending mails using > > python > > Following (tested) snippet should help: > > ------------------ 8< ------------------------------ > from smtplib import SMTP > from email.mime.image import MIMEImage > from email.mime.text import MIMEText > from email.mime.multipart import MIMEMultipart > > to = 'to_address(a)example.invalid' > cc = 'cc_address(a)example.invalid' > bcc = 'bcc_address(a)example.invalid' > > msg = MIMEMultipart() > msg['To'] = to > msg['Cc'] = cc > msg['From'] = 'bernhard(a)bwalle.de' > msg['Subject'] = 'Test' > text = MIMEText('Das ist ein Test') > text.add_header("Content-Disposition", "inline") > msg.attach(text) > > s = SMTP('test.smtp.relay') > s.sendmail(msg['From'], [to, cc, bcc], msg.as_string()) > s.quit() > ------------------ >8 ------------------------------ > > > Regards, > Bernhard Hello Bernhard, I've tried the above code and the bcc address does not receive the message, on the To & CC addresses receive it. Here are snippets from my code, perhaps something will stand out to you? to = 'ed(a)domain.gov' cc = 'ed(a)gmailmail.com' bcc = 'ed(a)home.net' msg = MIMEMultipart() msg['To'] = to msg['Cc'] = cc msg['Subject'] = 'My Subject text here' msg['From'] = 'edsboss(a)domain.gov' smtp = SMTP("smtpserver") smtp.ehlo() smtp.sendmail(msg['From'], [to, cc, bcc], msg.as_string()) Thanks in advance..hope you're still out there!! ~Ed

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[RELEASE] Python 3.11.1, 3.10.9, 3.9.16, 3.8.16, 3.7.16, and 3.12.0 alpha 3 are now available
by Łukasz Langa Feb. 18, 2023

Feb. 18, 2023

Greetings! We bring you a slew of releases this fine Saint Nicholas / Sinterklaas day. Six simultaneous releases has got to be some record. There’s one more record we broke this time, you’ll see below. In any case, updating is recommended due to security content: 3.7 - 3.12: gh-98739 <https://github.com/python/cpython/issues/98739>: Updated bundled libexpat to 2.5.0 to fix CVE-2022-43680 <https://nvd.nist.gov/vuln/detail/CVE-2022-43680> (heap use-after-free). 3.7 - 3.12: gh-98433 <https://github.com/python/cpython/issues/98433>: The IDNA codec decoder used on DNS hostnames by socket or asyncio related name resolution functions no longer involves a quadratic algorithm to fix CVE-2022-45061 <https://nvd.nist.gov/vuln/detail/CVE-2022-45061>. This prevents a potential CPU denial of service if an out-of-spec excessive length hostname involving bidirectional characters were decoded. Some protocols such as urllib http 3xx redirects potentially allow for an attacker to supply such a name. 3.7 - 3.12: gh-100001 <https://github.com/python/cpython/issues/100001>: python -m http.server no longer allows terminal control characters sent within a garbage request to be printed to the stderr server log. 3.8 - 3.12: gh-87604 <https://github.com/python/cpython/issues/87604>: Avoid publishing list of active per-interpreter audit hooks via the gc module. 3.9 - 3.10 (already released in 3.11+ before): gh-97514 <https://github.com/python/cpython/issues/97514>: On Linux the multiprocessing module returns to using filesystem backed unix domain sockets for communication with the forkserver process instead of the Linux abstract socket namespace. Only code that chooses to use the “forkserver” start method is affected. This prevents Linux CVE-2022-42919 <https://nvd.nist.gov/vuln/detail/CVE-2022-42919> (potential privilege escalation) as abstract sockets have no permissions and could allow any user on the system in the same network namespace (often the whole system) to inject code into the multiprocessing forkserver process. This was a potential privilege escalation. Filesystem based socket permissions restrict this to the forkserver process user as was the default in Python 3.8 and earlier. 3.7 - 3.10: gh-98517 <https://github.com/python/cpython/issues/98517>: Port XKCP’s fix for the buffer overflows in SHA-3 to fix CVE-2022-37454 <https://nvd.nist.gov/vuln/detail/CVE-2022-37454>. 3.7 - 3.9 (already released in 3.10+ before): gh-68966 <https://github.com/python/cpython/issues/68966>: The deprecated mailcap module now refuses to inject unsafe text (filenames, MIME types, parameters) into shell commands to address CVE-2015-20107 <https://nvd.nist.gov/vuln/detail/CVE-2015-20107>. Instead of using such text, it will warn and act as if a match was not found (or for test commands, as if the test failed). <https://discuss.python.org/t/python-3-11-1-3-10-9-3-9-16-3-8-16-3-7-16-and-…>Python 3.12.0 alpha 3 Get it here, read the change log, sing a GPT-3-generated Sinterklaas song: https://www.python.org/downloads/release/python-3120a3/ <https://www.python.org/downloads/release/python-3120a3/> 216 new commits since 3.12.0 alpha 2 last month. <https://discuss.python.org/t/python-3-11-1-3-10-9-3-9-16-3-8-16-3-7-16-and-…>Python 3.11.1 Get it here, see the change log, read the recipe for quark soup: https://www.python.org/downloads/release/python-3111/ <https://www.python.org/downloads/release/python-3111/> A whopping 495 new commits since 3.11.0. This is a massive increase of changes comparing to 3.10 at the same stage in the release cycle: there were “only” 339 commits between 3.10.0 and 3.10.1. <https://discuss.python.org/t/python-3-11-1-3-10-9-3-9-16-3-8-16-3-7-16-and-…>Python 3.10.9 Get it here, read the change log, see circular patterns: https://www.python.org/downloads/release/python-3109/ <https://www.python.org/downloads/release/python-3109/> 165 new commits. <https://discuss.python.org/t/python-3-11-1-3-10-9-3-9-16-3-8-16-3-7-16-and-…>Python 3.9.16 Get it here, read the change log, consider upgrading to a newer version: https://www.python.org/downloads/release/python-3916/ <https://www.python.org/downloads/release/python-3916/> Security-only release with no binaries. 10 commits. <https://discuss.python.org/t/python-3-11-1-3-10-9-3-9-16-3-8-16-3-7-16-and-…>Python 3.8.16 Get it here, see the change log, definitely upgrade to a newer version: https://www.python.org/downloads/release/python-3816/ <https://www.python.org/downloads/release/python-3816/> Security-only release with no binaries. 9 commits. <https://discuss.python.org/t/python-3-11-1-3-10-9-3-9-16-3-8-16-3-7-16-and-…>Python 3.7.16 Get it here, read the change log, check PEP 537 <https://peps.python.org/pep-0537/>to confirm EOL is coming to this version in June 2023: https://www.python.org/downloads/release/python-3716/ <https://www.python.org/downloads/release/python-3716/> Security-only release with no binaries. 8 commits. <https://discuss.python.org/t/python-3-11-1-3-10-9-3-9-16-3-8-16-3-7-16-and-…>We hope you enjoy the new releases! Thanks to all of the many volunteers who help make Python Development and these releases possible! Please consider supporting our efforts by volunteering yourself or through organization contributions to the Python Software Foundation. https://www.python.org/psf/ <https://www.python.org/psf/> Your friendly release team, Ned Deily @nad <https://discuss.python.org/u/nad> Steve Dower @steve.dower <https://discuss.python.org/u/steve.dower> Pablo Galindo Salgado @pablogsal <https://discuss.python.org/u/pablogsal> Łukasz Langa @ambv <https://discuss.python.org/u/ambv> Thomas Wouters @thomas <https://discuss.python.org/u/thomas>

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Possible re bug when using ".*"
by Alexander Richert - NOAA Affiliate Jan. 1, 2023

Jan. 1, 2023

In a couple recent versions of Python (including 3.8 and 3.10), the following code: import re print(re.sub(".*", "replacement", "pattern")) yields the output "replacementreplacement". This behavior does not occur in 3.6. Which behavior is the desired one? Perhaps relatedly, I noticed that even in 3.6, the code print(re.findall(".*","pattern")) yields ['pattern',''] which is not what I was expecting. Thanks, Alex Richert -- Alexander Richert, PhD *RedLine Performance Systems*

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NoneType List
by Goran Ikac Dec. 31, 2022

Dec. 31, 2022

Happy New Year, everybody! I'm new in the Python List, new in Python world, and new in coding. A few days (weeks?) ago, I faced a problem trying to write a program for an exercise. I asked for help and nobody answered. In the meantime, I found a part of the solution, but a part still remains a mystery for me. Please run this small snippet, and help. Thanks a = [1, 2] print() print("a ==", a) print("type(a) is", type(a)) b = a.append(3) print("\nb =", "a.append(3)") print("b ==", b) print("type(b) is", type(b)) c = ['1', '2'] print("\nc ==", c) print("type(c) is", type(c)) d = c.append('3') print("\nd =", "c.append('3')") print("d ==", d) print("type(d) is", type(d)) """ I mean: why b = a.append(something) is the None type, and how to make a new list that contains all the items from a and some new items? I wasn't able to solve it in a few hours :( Now I know: """ crta = '=' print('\n', 4 * ' ', crta * (len('The solution:')), sep='') print(3 * ' ', 'The solution:') print(4 * ' ', crta * (len('The solution:')), sep='') print('\nThe solution is the slice, an element of Python syntax that allows') print('to make a brand new copy of a list, or parts of a list.') print('The slice actually copies the list\'s contents, not the list\'s name:') print() a = [1, 2] print("a ==", a) print("type(a) is", type(a)) b = a[:] print("\nb = a[:]") print("b ==", b) b.append(3) print("\nb =", "b.append(3)") print("b ==", b) print("type(b) is", type(b)) print("\na ==", a) print('But I still don't know why "b = a.append(something)" is the None type.') print('Is there anybody out there?!')

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NoneType List
by Thomas Passin Dec. 31, 2022

Dec. 31, 2022

Happy New Year, everybody! I'm new in the Python List, new in Python world, and new in coding. A few days (weeks?) ago, I faced a problem trying to write a program for an exercise. I asked for help and nobody answered. In the meantime, I found a part of the solution, but a part still remains a mystery for me. Please run this small snippet, and help. Thanks a = [1, 2] print() print("a ==", a) print("type(a) is", type(a)) b = a.append(3) print("\nb =", "a.append(3)") print("b ==", b) print("type(b) is", type(b)) c = ['1', '2'] print("\nc ==", c) print("type(c) is", type(c)) d = c.append('3') print("\nd =", "c.append('3')") print("d ==", d) print("type(d) is", type(d)) """ I mean: why b = a.append(something) is the None type, and how to make a new list that contains all the items from a and some new items? I wasn't able to solve it in a few hours :( Now I know: """ crta = '=' print('\n', 4 * ' ', crta * (len('The solution:')), sep='') print(3 * ' ', 'The solution:') print(4 * ' ', crta * (len('The solution:')), sep='') print('\nThe solution is the slice, an element of Python syntax that allows') print('to make a brand new copy of a list, or parts of a list.') print('The slice actually copies the list\'s contents, not the list\'s name:') print() a = [1, 2] print("a ==", a) print("type(a) is", type(a)) b = a[:] print("\nb = a[:]") print("b ==", b) b.append(3) print("\nb =", "b.append(3)") print("b ==", b) print("type(b) is", type(b)) print("\na ==", a) print('But I still don't know why "b = a.append(something)" is the None type.') print('Is there anybody out there?!') -- https://mail.python.org/mailman/listinfo/python-list

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set.add() doesn't replace equal element
by Ian Pilcher Dec. 31, 2022

Dec. 31, 2022

I just discovered this behavior, which is problematic for my particular use. Is there a different set API (or operator) that can be used to add an element to a set, and replace any equal element? If not, am I correct that I should call set.discard() before calling set.add() to achieve the behavior that I want? -- ======================================================================== Google Where SkyNet meets Idiocracy ========================================================================

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help
by Mor yosef Dec. 30, 2022

Dec. 30, 2022

Hello guys, i install python 3.11.1, and i have google chrome so i download the Webdriver Chrome and i just add it on my c:// driver and when i add some script on my desktop i try to run it from the terminal and all the time i receive this error message : maybe you guys can help me with this one? when i add some random code the terminal like "python -m webbrowser https://www.google.com" it's just works (it's open the website in new tab) Regards Mor yosef

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Re: Why can't the pointer in a PyCapsule be NULL?
by Robert Latest Dec. 30, 2022

Dec. 30, 2022

Stefan Ram wrote: > Robert Latest <boblatest(a)yahoo.com> writes: >>the question is in the subject. I'd like the pointer to be able to be NULL >>because that would make my code slightly cleaner. No big deal though. > > In Usenet, it is considered good style to have all relevant > content in the body. Makes sense. > . On a superficial level, the answer is: "Because > PyCapsule_GetPointer uses NULL to indicate failure." Makes sense, too. Thanks.

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Why can't the pointer in a PyCapsule be NULL?
by Robert Latest Dec. 30, 2022

Dec. 30, 2022

Hi all, the question is in the subject. I'd like the pointer to be able to be NULL because that would make my code slightly cleaner. No big deal though.

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