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Welcome back again, in this chapter we will create a message box to tell the user how many duplicate files have been deleted from each selected file. The game plan here is simple, we will attach a message variable to the label widget and pass that widget to each remove thread instance so the program can modify the content of that message by adding in the selected file name as well as the total number of duplicate files that have been remove from the selected folder. That modify message will then be shown by the messagebox on the main thread at the end of each file deleting process. The first file we need to edit is the main file where we will pass in the tkinter’s label object with the message variable to each new remove thread instance which the program has created, the remove thread instance will then modify the content of that same message which includes the total number of duplicate files that have been deleted together with the file name of the original selected file. We need not worry too much about whether those threads will compete with each other to modify the content of the message or not because one process will finish before another so therefore there is always a time gap in between the process in this case. Here is the new version of the main file. from tkinter import * from tkinter import filedialog from Remove import Remove import os from tkinter import messagebox win = Tk() # 1 Create instance win.title("Multitas") # 2 Add a title win.resizable(0, 0) # 3 Disable resizing the GUI win.configure(background='black') # 4 change background color # 5 Create a label aLabel = Label(win, text="Remove duplicate", anchor="center") aLabel.grid(column=0, row=1) aLabel.configure(foreground="white") aLabel.configure(background="black") aLabel.message = '' # 6 Create a selectFile function to be used by button def selectFile(): fullfilenames = filedialog.askopenfilenames(initialdir="/", title="Select a file") # select multiple files from the hard drive if(fullfilenames != ''): fullfilenamelist = win.tk.splitlist(fullfilenames) directory_path = os.path.dirname(os.path.abspath(fullfilenamelist[0])) os.chdir(directory_path) # change the directory to the selected file directory folder = filedialog.askdirectory() # 7 open a folder then create and start a new remove thread to delete the duplicate file folder = folder.replace('/', '\\') # 8 this is for the windows separator only if(folder != '' and folder != os.getcwd()): for fullfilename in fullfilenamelist: if(fullfilename != ''): filename = fullfilename.split('/')[-1] remove = Remove(folder, filename, fullfilename, directory_path, aLabel) remove.start() remove.join() messagebox.showinfo('Remove duplicate files', aLabel.message) else: messagebox.showinfo("Error", "Kindly select one folder and it must be a different one") return else: messagebox.showinfo("Select file", "You need to select a file!") return # 9 Adding a Button action = Button(win, text="Select File", command=selectFile) action.grid(column=0, row=0) action.configure(background='brown') action.configure(foreground='white') win.mainloop() # 10 start GUI And here is the edit version of the remove thread class. import threading import os import filecmp from tkinter import messagebox class Remove(threading.Thread): def __init__(self, massage, filename, fullfilename, directory_path, aLabel): threading.Thread.__init__(self) self.massage = massage self.filename, self.file_extension = os.path.splitext(filename) self.fullfilename = fullfilename self.directory_path = directory_path self.count = 0 self.aLabel = aLabel def run(self): filepaths = os.listdir(self.massage) for filepath in list(filepaths): os.chdir(self.massage) if(os.getcwd() != self.directory_path): # make sure that we will not delete the same file in the selected file directory if(os.path.isfile(filepath)): filename, file_extension = os.path.splitext(filepath) self.remove_file(file_extension, filepath) else: self.delete_duplicate(os.path.join(self.massage, filepath)) else: continue self.aLabel.message = 'Removed ' + str(self.count) + ' duplicate : ' + self.filename # show this message box each time a set of duplicate files have been remove def delete_duplicate(self, folder): # sub method to pass folder to filepaths = os.listdir(folder) for filepath in list(filepaths): os.chdir(folder) if(os.getcwd() != self.directory_path): if(os.path.isfile(filepath)): filename, file_extension = os.path.splitext(filepath) self.remove_file(file_extension, filepath) else: self.delete_duplicate(os.path.join(folder, filepath)) else: continue def remove_file(self, file_extension, filepath): if (file_extension == self.file_extension): if filecmp.cmp(filepath, self.fullfilename, shallow=False): os.remove(filepath) self.count += 1 Now each remove thread will manage it’s own business so there is no conflict with the count variable and the old message text will be replaced by the new one by the next process which changes it. That is basically it for this remove duplicate project, we are now fully ready to pack it up and use it on our windows’ desktop.

I proudly announce libchirp. I believe queues, message-routers and patterns like pub-sub are the way message-passing should be done. However, I also believe they should be optional and tweak-able. libchirp does only one thing: message-passing with encryption. All other building-blocks should be implemented in upper-layer modules or daemons. libchirp is the basis for modular message-passing and actor-based programming. I want to thank Adfinis-SyGroup who have supported me and allowed me to develop libchirp. Here the mandatory echo-server example: import asyncio from libchirp.asyncio import Chirp, Config, Loop class EchoChirp(Chirp): async def handler(self, msg): await self.send(msg) loop = Loop(); config = Config() config.DISABLE_ENCRYPTION = True # Workers are usually asynchronous config.SYNCHRONOUS = False aio_loop = asyncio.get_event_loop() try: chirp = EchoChirp(loop, config, aio_loop) try: aio_loop.run_forever() finally: chirp.stop() finally: loop.stop() There is also a ThreadPoolExecutor- and a Queue-based interface. By the way libchirp for python are bindings to my C99-implementation. My secondary goal is to build a polyglot message-passing toolkit. Please be welcome to contribute bindings for your favorite language.

Python 3.7.2rc1 and 3.6.8rc1 are now available. 3.7.2rc1 is the release preview of the next maintenance release of Python 3.7, the latest feature release of Python. 3.6.8rc1 is the release preview of the next and last maintenance release of Python 3.6, the previous feature release of Python. Assuming no critical problems are found prior to 2018-12-20, no code changes are planned between these release candidates and the final releases. These release candidates are intended to give you the opportunity to test the new security and bug fixes in 3.7.2 and 3.6.8. We strongly encourage you to test your projects and report issues found to bugs.python.org as soon as possible. Please keep in mind that these are preview releases and, thus, their use is not recommended for production environments. You can find these releases and more information here:     https://www.python.org/downloads/release/python-372rc1/     https://www.python.org/downloads/release/python-368rc1/

#346 – DECEMBER 11, 2018 View in Browser » PyCon 2019 Proposal Submission Deadline Is Fast Approaching If you’re interested in giving a talk or hosting a poster session at PyCon 2019, be sure to get your proposals in before the deadline on January 3rd. PYCON.BLOGSPOT.COM SQLAlchemy for MySQL and Pandas Running SQL queries and loading the results directly into a Pandas dataframe with SQLAlchemy (read_sql_query()). Using this approach, the 4.5+ seconds it took in Eric’s example to grab data, analyze the data, and return the data was reduced to about 1.5 seconds. Impressive gains for just switching out the connection/management method. ERIC BROWN How to Grow a Neat Software Architecture Out of Jupyter Notebooks “Have you ever been in the situation where you’ve got Jupyter notebooks so huge that you were feeling stuck in your code?” It’s easy to get to that point with any notebook or REPL-based workflow, and Guillame shares some interesting ideas in this article. GUILLAUME CHEVALIER Get a Data Science Job in 6 Months, Guaranteed With 1-on-1 mentorship, career coaching, and personalized support, you’ll gain the skills and experience you need to get hired in a new role with Springboard’s Data Science Career Track. The average reported salary increase was $23k. Launch your new career with Springboard. Apply today → SPRINGBOARD sponsor The Hitchhiker’s Guide to Python An opinionated guide to the Python programming language and a best practice handbook to the installation, configuration, and usage of Python on a daily basis. Community-powered and contributor-friendly (pull requests welcome). PYTHON-GUIDE.ORG Pipenv: Promises a Lot, Delivers Very Little Opinionated piece on Pipenv, the Python packaging tool: “In this post, I will explore the problems with Pipenv. Was it really recommended by Python.org? Can everyone — or at least, the vast majority of people — benefit from it?” Also see the related discussion on Hacker News. CHRIS WARRICK opinion Teaching Kids to Code: I’m a Developer and I Think It Doesn’t Actually Teach Important Skills The gist of this opinion piece is that sending kids to code clubs and “summer coding camps” may teach them the wrong skills at the wrong time. That said, I think I would’ve loved to go to a summer coding camp as a kid… Worth a read if you’re thinking about teaching your kids how to code. JOE MORGAN opinion Sending Emails With Python Find out how to send plain-text and HTML messages, add files as attachments, and send personalized emails to multiple people using Python. Covers talking directly to an SMTP server and how to use the APIs of a transactional email service like Sendgrid (which is what we do for PyCoder’s Weekly). REAL PYTHON Discussions (Possibly) Quitting Python Development After 2 Years of Non-Stop Learning “I just can’t finish a damn project. I’ve been learning entirely on my own. I can honestly say I’ve received zero assistance apart from help on minor bugs.” REDDIT When You Try to Choose a Meaningful Variable Name… TWITTER.COM/REALPYTHON A Love Letter to f-strings REDDIT What It’s Like to Be a Moderator on a Python Forum Brian is a project manager by day, and by night he’s one of the moderators of the Pythonista Café. In this interview, he talks about how Python helps him in his role as a project manager, and how moderating a large forum for Python enthusiasts has impacted his coding chops. REAL PYTHON Python Jobs Software Engineer (Munich, Germany) Stylight GmbH Senior Software Engineer (Munich, Germany) Stylight GmbH Lead Engineer (Munich, Germany) Stylight GmbH Backend Software Engineer (Vancouver, BC) Gasket Games Corp Head of Engineering (Remote) FindKeep.Love Cybersecurity Firm Seeks Backend Lead (NY or LA) Aon Cyber Solutions Senior Software Engineer (Los Angeles, CA) GoodRx Senior Developer (Chicago, IL) Panopta More Python Jobs >>> Articles & Tutorials How to Fix Your Python Code’s Style This article demonstrates how to run the flake8 code linter only on files that were modified recently. When you inherit Python code that doesn’t follow the style guidelines that your team prefers for new code, this technique will come in handy. DAN POIRIER Using Python to Calculate Monthly Car Payments How interest rates/APR affect monthly payments, and how the length of a loan affects total interest paid. Nice, practical tutorial with lots of examples and illustrations. If you’re thinking about financing a car, why not put those Python skills to use. MICHAEL GALARNYK • Shared by Michael Galarnyk How to Become a (Good) Python Podcast Guest A podcast episode about being a podcast guest: Brian Okken and Michael Kennedy talk about how you can become a podcast guest and what to expect. This is so meta it’s giving me seizures! TEST & CODE podcast Love Python? Show It With Some Python Swag Show your love for the best programming language in the world and make your day more Pythonic with Python mugs, t-shirts, mouse pads, and stickers. Get 20% off this week only with coupon code “PYCODERS” → NERDLETTERING sponsor Deciphering Python: How to Use Abstract Syntax Trees (AST) to Understand Code How does the Python interpreter “know” how to run your code? Matt’s article goes into the basics of parsing and working with Abstract Syntax Trees. MATT LAYMAN • Shared by Matt Layman Save and Load Your Keras Deep Learning Models As usual, this is another in-depth tutorial from Adrian. Comes with source code examples. ADRIAN ROSEBROCK The Rise of Python for Embedded Systems Continues Obviously these folks have a horse in the race here, but it’s cool to see that Python is getting traction in the embedded programming space. I’d definitely prefer to write my IoT logic in Python than in C, if the performance constraints allow it. ZERYNTH.COM Python at Microsoft: Flying Under the Radar Many Microsoft products now include Python support and this is Steve’s story of how this shift came about. STEVE DOWER (MICROSOFT) Using Pip in a Conda Environment What you can do to avoid breakage when using Conda and Pip together in the same Python environment. From personal (workshop) experience I know that this is something that new Pythonistas run into. ANACONDA.COM Dockerizing a Python Django Web Application How to build a simple “Hello World”-style web application written in Django and running it inside a Docker container. DAVID SALE Create PDF Files With Python and Google Docs Interesting “hack” for generating templated PDF files using Google Docs and a Python script. GARETH DWYER Implementing a Plugin Architecture in a Python Application ALY SIVJI Django Software Foundation (DSF) 2019 Board Election Results DJANGOPROJECT.COM Spinning Up a Pong AI With Deep Reinforcement Learning Dive into Python Deep RL by coding a simple Vanilla Policy Gradient model that plays the beloved early 1970s classic video game Pong. MICHAËL TRAZZI From Python Software Engineer to Engineering Manager Swaroop is the author of “A Byte of Python” and an engineering manager at HelpShift. In this interview he talks about his experience and the lessons learned moving from an individual contributor role into dev management. DEVTOMANAGER.COM • Shared by Siddhant Goel All Things Being Equal: “is” vs “==” To test equality, Python allows one to use “==” to test for values and “is” to test for identity. Find out the difference between the two in this easy to understand beginner’s article. HARLIN SERITT • Shared by Ricky White Projects & Code Terminals Are Sexy A curated list of Terminal frameworks, extensions, and resources for CLI lovers. I had no idea what was out there… TERMINALSARE.SEXY loguru: Python Logging Made (Stupidly) Simple This is a brand-new project but the README looks promising. If you ever felt lazy about configuring logging and used print() instead, this might be worth checking out. GITHUB.COM/DELGAN molten: A Framework for Building HTTP APIs With Python MOLTENFRAMEWORK.COM nginxpy: Embed Python in NGINX Allows you to run embedded Python in the NGINX web server. GITHUB.COM/DECENTFOX secure: Secure Headers and Cookies for Python Web Frameworks HTTP response headers that, when set, can enhance the security of your web application by enabling browser security policies. Things like X-Frame-Options, Referrer-Policy, and so on. GITHUB.COM/CAKINNEY python-colorlog: Colored Formatter for Python’s Logging Module GITHUB.COM/BORNTYPING Python Template Snippets (VS Code Extension) A snippet extension for Django and Jinja2 templating engines. VISUALSTUDIO.COM • Shared by Ricky White MyPy 0.650 Released MYPY-LANG.BLOGSPOT.COM PyTorch 1.0 Released GITHUB.COM/PYTORCH nbdime: Local Diffing and Merging of Jupyter Notebooks READTHEDOCS.IO Happy Pythoning!This was PyCoder’s Weekly Issue #346.View in Browser » [ Subscribe to ? PyCoder’s Weekly ? – Get the best Python news, articles, and tutorials delivered to your inbox once a week >> Click here to learn more ]

Part of what I want to do with this site is recommend tools and resources that I've found valuable, in the hopes that you might benefit from them and enjoy them as I have.There has been one program, in particular, that I use most times I'm in a coding session. Sadly, I can't use it at work, and I miss it dearly. Whenever I open it, I feel a sense of relief, knowing that I am in good hands.Today, I recommend you try Dash. Documentation quick reference Having the documentation at hand for what your working on is a great boost for productivity. I can't tell you how many times I've needed to look up the order of arguments to animate something in CSS or the syntax to copy a file using `scp`. Having a way to quickly find the answer you are looking for is crucial for keeping in your flow, and Dash excels at that.Dash downloads the documentation for languages and frameworks that you use, provides lightning-fast searching for them, and gives you a great user experience to quickly access what you need.Also, these docs you've downloaded are accessible when you're not on the Internet, perfect for coding while traveling.Let's say, for example, you were to type "sort" with the docs I have installed. Dash would immediately bring up the docs for python's `list.sort()` method. I can tap the down arrow to see a collection of JavaScript `sort` functions, SQLAlchemy's `MutableList.sort()`, a `man` page for `sort`, jinja's `sort`, and so on. You can see more in the screenshot. image Dash sort example caption An example of searching for sort alignment full Every result from your search can be quickly accessed and further searched through the keyboard.Continuing with this example, the first result from searching for "sort" is python's `list.sort`. There's a "3" on the right side to signify that there are three total matches for "sort" in the python standard library. If I hit `return` or `option-return`, it'll pop up a menu to choose between them.The next result is for three options in the JavaScript language. Tapping the down key will bring up the first, and an `return` will bring up the menu to choose between them.If I know I'm looking for something in python3, I can type "py:",[py]{I believe the default binding is "python:", but who wants to type all that when you've got coding to do?} and Dash will narrow its scope to return the docs I want.On top of that, if you're still in the search field, you can hit `space`, start typing in more letters, and Dash will search and highlight the first match for that term in the currently active document. Hitting `return` jumps to the next one.I can't tell you how significant this has been to my coding productivity. Other options Before I go further, I want to pause to mention there are other documentation tools out there that can do similar things. The ones I know of are:devdocs.ioVelocityZealThese have a similar functionality of downloading the documentation for languages, frameworks, and tools, and make them are available to search offline. Please give them a try. They may fill your needs. I even use DevDocs at work.But in my eyes, they just don't measure up to the experience that I enjoy in Dash. Most of them don't have anywhere near the number of doc sets available,[doclist]{A partial list of the docs you can download is up on the Dash website.} and none of them have as great of an experience as Dash.But some of these are free and give you a taste of what you can get if you were to pay for Dash. Jump around One of the things I miss the most when I'm not able to use Dash is the way it allows me to quickly explore and jump around the document I'm looking at. image Dash top of window caption The top of Dash's interface alignment right The top of the window has a breadcrumb-like navigation that allows you to click on a segment and drill in to other items. For example, if I were looking up the documentation for python's `pathlib.Path`, the navigation would display `pathlib` > `Classes` > `Path`. If I click on "Path", it would display a drop-down where I can choose from the other Classes in the `pathlib` module, like `PosixPath` or `PurePath`. Clicking on "Classes" provides a great way to drill down into the modules and methods in `pathlib`, as well as the sections of the documentation. image Dash UI left side caption A scrollable menu with links to jump to the part of the document you want the most. alignment left The same ability to see what else is included in the documentation page is available in the lower-left corner of the window as well.One of the great things about this solution is that it provides an opportunity for "accidental discovery" of documentation that you might not have known about. I've learned a lot about the libraries I use every day because I went down a documentation rabbit hole that Dash inspired.[pathlib]{My excitement over of python's `pathlib` module is a key example of a library I have discovered, use, and love, thanks to Dash.} There's more to love What I've described so far is the basic functionality for Dash, and it has been enough for me to be very happy with Dash for years.There are other features that are very useful, including:Setting up search profiles, which allow you to set up a collection of docs to search against that can get activated with triggers. Some profiles I have set up include an Arduino profile, that activates when I start the Arduino coding environment, and project-specific profiles with docs for their particular stack.Integration with coding environments and other programs. This is great, since as you're coding you can hit a key combination and immediately get the docs for the word you're on. Most coding environments can also tell Dash what language you're currently in, to improve the chances of having the best result pop up."Snippets", which give you the ability to type a few characters and have them replaced with the text you set up. Most code editors have this functionality already, but Dash's works just about everywhere. Keep you in your flow When it comes down to it, I really appreciate Dash's ability to keep me in the flow.I don't have to go to use a web browser and run the chance of getting distracted on my way to or from the documentation I'm looking for. I can be in and out of the documentation in a minimal amount of time, and right back at it.Second to that, the ability to explore documentation or discover new-to-me functionality in the code I use has been just as valuable.Dash is available to download for macOS. It has a free trial that allows you to use all it's functionality, but after a delay. At the time writing, Dash is $30.Do you use another solution for your document lookup? Let me know your story.

DetailsCome join PYPTUG at out next monthly meeting (Deceber 18th 2018) to learn more about the Python programming language, modules and tools. Python is the language to learn if you've never programmed before, and at the other end, it is also a tool that no expert would do without.Main talk:     Training Tools - Utilizing Jupyter Notebookspresented by Joan Pharrbio:Joan Pharr is currently a Lead Business Analyst at Valassis Digital. On the side she seeks to save the world with math, facts and a penchant for comedy. Collaborating with others to solve problems and share stories is one of the her favorite aspects of PyData.Abstract:Jupyter Notebooks can be a great tool for teaching and learning in a corporate setting. In this talk I’ll cover three ways I’ve incorporated Jupyter Notebooks into my daily routine: (1) Using notebooks as templates with information, questions and examples for training new team members. (2) Collecting notebooks to share code for infrequent requests across our team. (3)  Using notebooks to try new techniques, play with new packages, and quickly test new code.Lightning talks!We will have some time for extemporaneous "lightning talks" of 5-10 minute duration. If you'd like to do one, some suggestions of talks were provided here, if you are looking for inspiration. Or talk about a project you are working on.When:Tuesday, Decemberr 18th 2018Meeting starts at 6:00PMWhere:Wake Forest University, close to Polo Rd and University Parkway:Manchester Hallroom: Manchester 241Wake Forest University, Winston-Salem, NC 27109 Map thisSee also this campus map (PDF) and also the Parking Map (PDF) (Manchester hall is #20A on the parking map)And speaking of parking:  Parking after 5pm is on a first-come, first-serve basis.  The official parking policy is:"Visitors can park in any general parking lot on campus. Visitors should avoid reserved spaces, faculty/staff lots, fire lanes or other restricted area on campus. Frequent visitors should contact Parking and Transportation to register for a parking permit."Mailing List:Don't forget to sign up to our user group mailing list:https://groups.google.com/d/forum/pyptug?hl=enIt is the only step required to become a PYPTUG member.

In this episode, you will learn ye olde method of adding code to the Python Packaging Index. Note that while some of this video is still relevant, you should be using the twine package now for uploading to PyPI. See https://packaging.python.org/guides/using-testpypi/ for more information. You can also read the chapter this video is based on here or get the book on Leanpub Previous Episodes Python 101: Episode #35 – The virtualenv PackagePython 101: Episode #34 – The SQLAlchemy PackagePython 101 – Episode #33: The requests PackagePython 101: Episode #32 – Static Code Analysis