gzip — Support for gzip files — Python 3.9.0 documentation

[N] Tensorflow 2.3.0 Released!

There is also a new experimental tf.data API for saving and loading datasets(https://www.tensorflow.org/versions/r2.3/api_docs/python/tf/data/experimental/save)
https://github.com/tensorflow/tensorflow/commit/4d58a67a9f19ab8d0cfbb2d8e461ebb73ce06db6
https://github.com/tensorflow/tensorflow/issues/38483#issuecomment-640963109

https://github.com/tensorflow/tensorflow/releases/tag/v2.3.0

Release 2.3.0

Major Features and Improvements


In addition checkout the detailed guide for analyzing input pipeline performance with TF Profiler.

Breaking Changes


Known Caveats


Bug Fixes and Other Changes

TF Core:


tf.data:


tf.distribute:


tf.keras:


tf.lite:


Packaging Support


Profiler


TPU Enhancements


Tracing and Debugging


XLA Support


submitted by IIIBlueberry to MachineLearning [link] [comments]

Securely generate 24-word Mnemonic using Dice

Disclaimer: This is for education purposes only. This is quite advanced for the average user. If you are to going to protect funds with a mnemonic generated using this method, use only a verified copy of tails and do all processes in a completely secure offline environment.
Let me begin by saying there is nothing to suggest that the RNG used in popular software/hardware wallets is flawed. The generation process uses TRNG's certified from 3rd parties which should satisfy the large majority of users. However, if you are the type that trusts no one and you want to verify your BIP39 Mnemonic is truly random or you just want to find out how it works, then you must generate it yourself.
The process itself is straightforward, The BIP39 dictionary contains 2048 words, each of these words represents 11 binary bits (0 or 1). A 24-word Mnemonic consists of 23 Words and a Checksum word. To create our own mnemonic we start by generating 256 bits of random binary then calculating the rest of the checksum. There is many ways to randomly generate the binary, but specifically for this tutorial we use six-sided dice. (If you have another means of generating the 256-bits, such as coin flips, then jump straight to step 10)
The entire process will be done only using tools built-in to tails. All base converisons will be done in the linux terminal using the 'bc' or Basic Calculator command. Calculating the checksum will use python standard library.
Tools needed:

Create BIP39 Mnemonic with Dice

Picture Album - https://imgur.com/a/sXTHr6c
submitted by Mcgillby to Bitcoin [link] [comments]

An electrical engineers opinion on the Librem 5.

Hello everyone. In light of the most recent update, "Supplying the Demand", I would like to share my opinions on the current state of this device.
The following is some basic info of my background. You are free to criticize any and all aspects of this post.
  1. I am an electrical engineer who specializes in digital signal processing (DSP), systems (debug), and comms.
  2. I currently work at a large company that operates in the cell phone industry. My roll is within a 5G research/testing department.
  3. This is my main Reddit account which is reasonably old and active. I typically lurk a lot and rarely post.
  4. My knowledge of programing is very limited. I preform 95% of my job functions with Python and Matlab. This will be a hardware and systems level discussion of the Librem 5.
The CEO of Purism, Mr. Todd Weaver, outlined three major problem areas within the current iteration of the Librem 5: Thermals, Power, and Reception. Let us go through these in order.
=========================================================
Thermals:
Thermals and power are closely intertwined so let's only focus on Purism's options to fix thermals, assuming they make no changes to improve power consumption. Given that the Librem 5 is (thankfully) a thick device, I see no reason why Purism would not be able to fix the thermal issues. In a worst case scenario, they would have to redo the motherboard layout, add some thermal pads/paste, and maybe add a thin yet expensive copper vapor chamber. This would result in a worst case scenario of a possible delay and additional bill of material cost of 20-30 dollars. In my opinion, the thermal problems are solvable and within reach.
Power:
Because of the strict requirements Purism placed on the goals of this device (regarding binary blobs), they have chosen modem(s) that were not designed for this use case. All four variants of the offered modems by both modem vendors (Gemalto and Broadmobi) are internet of things (IOT) class chips. From an EE perspective, these modems are fine in the right context.
Industrial communication with large equipment (shipping yards)?
Great.
Vending machine credit card processing?
Also Great.
A mobile device (UE) that users will be moving around (mobility) and expecting good reception on a strict power budget?
And thus we arrive at the root of the power and reception issues. I am going to talk about reception in it's own section so lets talk power.
The large modem vendors in the smartphone space (Qualcomm, Samsung, Huwawei/HiSillicon, MediaTek, Intel) spend an huge amount of time and effort on power management features. Not only is logic level hardware design done with power in mind, but once the chip is fully taped out, months of effort by 100's of engineers is sunk to improve power characteristics via firmware development and testing. As much as we all hate binary blobs that may (probably) spy on us, these companies have good reason to keep their firmware (and thus power saving IP) secret. Significant competitive advantages are created between the modem vendors from this firmware and digital logic level power savings effort.
When a company markets their modem as "IOT", they are effectively admitting that little to no effort was done to keep chip power in check. In the example IOT applications I mentioned (vending machine's and large industrial equipment), power does not matter. The devices themselves draw far more power than the modem that will be inside. Space is not a concern. So companies making IOT products with these modems simply ignore the power draw and slap on a large heat-sink. From lurking on linux and /Purism , I have seem others call out the modems without going in depth to why these products even exist. Yes, the specifications and capabilities of these modems are far lower. So be it. I think all of use are fine with "100 MBit" peak down-link (reality will be 10-20). The problem is that these chips were not designed for power efficiency and never intended to be in a small compact device. You would not put the engine of a Prius into a flatbed truck. The engineers at Toyota never intended for a Prius engine to go inside such a vehicle. The same situation has happened here.
Now on to how Purism can fix this power problem. With a herculean effort, the firmware developers employed by Purism (and hopefully some community members) can improve power characteristics. I suspect Purism employees have spent most of their time getting the modem firmware and RF-fronted SW into a functional state. There was a blog post somewhere where a Purism employee brought up a call over the air (OTA). I can't find it but that was by far the most important milestone of their effort. Getting past RACH and acquiring a base-station OTA is huge in the industry. The first phase of binary blob development is predominately focused on integrating features while avoiding attach failures and BLER issues. In this first phase, power saving features are typically disabled to make everything else easier to debug. It is safe to say that the Purism employees have neither had the time nor the resources to even start on modem/RF power saving features. Again, in my opinion, the power problem can be solved but this will be a huge massive incredible exhausting undertaking.
Reception:
As I have explained above, IOT-class modems are not designed for, and do not care for certain features. Certain features are really necessary for a regular smartphone (henceforth refereed to as a "UE") to function well. Some examples are:
  1. Mobility. The ability of a UE to switch to new base-stations as the user travels (walking, driving, whatever). This is distinct from the ability of the UE to attach (pass RACH msg 4) to a cell tower from boot or a total signal loss.
  2. Compatibility with all LTE bands. This is why Purism has to support four modems and why you the user will likely to have a somewhat unpleasant time setting things up.
  3. Interoperability testing vs Standards Regression Testing. Suppose that LTE specs can have 1000 different configurations for a cell network and towers within that network. Large modem vendors rigorously test 100's of possible configurations, even if the carriers (Verizon, Sprint, China Mobil, ...) and the base-station vendors (Huwawei, Nokia, Ericsson, ...) only use a few dozen possible configurations. This means that niche bugs are unfortunately likely to show up.
  4. Low-SNR performance. Companies who deploy these modems either place their devices in physical locations that get good SNR (20 dBm ish) or they just attach a giant antenna to get an extra 6-10 dB gain. Users of cellular devices want to still have basic connectivity for voice calls, SMS texts, and notification batches... even if the SNR is bad (1-bar ~= 7 dB SNR; NOTE: EE's use SNR and SINR interchangeably based on background) users still expect basic functionality. IOT modems do not have the hardware blocks to handle low-SNR signals. This is to keep the chip small and cheap. Some DSP tricks like higher order filter banks, over-sampling, and many other linear algebra tricks likely can not run on the modem in real time, rendering them useless. (wireless channel coherence is often quite short)
What concerns me the most is that in the "Supplying the Demand" post, Mr. Weaver only implies that there is a reception issue by very briefly mentioning an "antenna routing" problem. I do not find the claim plausible. UE base-band antennas are typically PIFA, patch, or Log periodic in design. Depending on many factors which are beyond my knowledge, you can get around 6-15 dB of gain from antennas alone. Even though I am a DSP engineer, my job requires me to have a surface level knowledge of antenna radiation patterns. Up front, I can tell you that antenna placement can not and is not a issue. In the Librem 5 batches that do not have metal construction. There should be zero problems. Plastic does not interfere with radio waves enough to cause more than 1-1.5 dB loss in the absolute worst case. In the devices with metal bodies, there should be no issue anyway because of antenna bands. The image I linked is a modern ultra-high end device where you can easily see two thin rectangular plastic antenna bands. There is a reason modern antenna bands are so small: it has become incredibly easy (and thus cheep) to mass produce highly directive antennas. This is especially true for for designs intended for UE's. As a student working in a lab on campus, we had a tight budget and needed to buy antennas for a system we were building. For legal reasons, we were operating on the 1.3 GHz band. Unfortunately, this was impossible because all the "off the shelf" (and very cheap) antennas were designed for various cell phone bands. We ended up ordering a custom design (Gerber files from a fellow student) and fabricated 150 large PIFA antennas for ~$100.
In summary, this large paragraph is a justification for the following strong opinion. I believe there may be serious reception issues with the Liberm 5. These reception issues are not related to antennas. Mr. Weavers in-passing and extremely brief mention of "antenna routing" issues may be the tip for the (reception/SNR) iceberg.
=========================================================
I want to make clear that I do not hold ill will against Purism or FOSS mobile efforts. I absolutely hate that any activity on my smartphone goes directly to Google. For years, I have been holing onto a 100-200 dollar class smartphone because use of said device must be kept to a minimum to protect my privacy (I try to keep all my online activity on a laptop that I control). However, this entire post is an opinionated criticism of Purism's hardware choices. At the end of the day, a cellular device that truly protects your privacy (with potential serious hardware and reception issues) is no different than a Android or iOS phone which has had its antennas and RF cards ripped out. A smartphone is only useful when it can be used. Otherwise, a laptop on a WiFi connection with VoIP (and a VPN) will be objectively more useful.
submitted by parakeetfour to linux [link] [comments]

MAME 0.207

MAME 0.207

It’s almost the end of February, and more importantly it’s time for MAME 0.207 to be released! We’ve added two Nintendo Game & Watch titles this month: Fire (wide screen) and Snoopy Tennis. If you’re at all interested in plug-and-play TV games, this is going to be a huge update, with all the newly-supported JAKKS Pacific titles, including Disney Princess, Dragon Ball Z, Nicktoons, Spider-Man, and Wheel of Fortune, as well as a number of matching Game-Keys. The other big batch of additions this month comes in the form of a whole lot of e-kara cartridge dumps from Japan. For younger players, we’re steadily filling out the V.Smile software list, with eighteen newly supported titles. The VGM software list has been updated with the latest video game music rips, and we’ve added some more original floppy dumps and clean cracks to the Apple II software lists.
With the latest improvements to the MIPS R4000 CPU, WD33C93 SCSI and SGI Newport graphics emulation, it’s possible to install and run IRIX in MAME. This is a milestone achievement, and wouldn’t have been possible without some amazing dedication and collaboration on the part of the contributors and team members involved. With the addition of graphics and mouse support, Windows 1.0 runs on MAME’s Tandy 2000 emulation. MAME continues to add additional variants of supported systems, including the HP 9825T and the Esselte Modulab educational system.
Newly supported arcade games include an earlier prototype of Rise of the Robots, bootlegs of Ghost Chaser Densei and The Glob, and additional versions of Raiden Fighters 2, Guardian Storm, Pasha Pasha Champ, Lethal Enforcers, and X-Men. General usability improvements include friendlier Apple II disassembly, the restoration of key map support in SDL builds (Linux/macOS), and better initial window positioning on Windows.
You can get the source and Windows binary packages from the download page.

MAMETesters Bugs Fixed

New working machines

New working clones

Machines promoted to working

Clones promoted to working

New machines marked as NOT_WORKING

New clones marked as NOT_WORKING

New working software list additions

Software list items promoted to working

New NOT_WORKING software list additions

Translations added or modified

Source Changes

submitted by cuavas to emulation [link] [comments]

MAME 0.207

MAME 0.207

It’s almost the end of February, and more importantly it’s time for MAME 0.207 to be released! We’ve added two Nintendo Game & Watch titles this month: Fire (wide screen) and Snoopy Tennis. If you’re at all interested in plug-and-play TV games, this is going to be a huge update, with all the newly-supported JAKKS Pacific titles, including Disney Princess, Dragon Ball Z, Nicktoons, Spider-Man, and Wheel of Fortune, as well as a number of matching Game-Keys. The other big batch of additions this month comes in the form of a whole lot of e-kara cartridge dumps from Japan. For younger players, we’re steadily filling out the V.Smile software list, with eighteen newly supported titles. The VGM software list has been updated with the latest video game music rips, and we’ve added some more original floppy dumps and clean cracks to the Apple II software lists.
With the latest improvements to the MIPS R4000 CPU, WD33C93 SCSI and SGI Newport graphics emulation, it’s possible to install and run IRIX in MAME. This is a milestone achievement, and wouldn’t have been possible without some amazing dedication and collaboration on the part of the contributors and team members involved. With the addition of graphics and mouse support, Windows 1.0 runs on MAME’s Tandy 2000 emulation. MAME continues to add additional variants of supported systems, including the HP 9825T and the Esselte Modulab educational system.
Newly supported arcade games include an earlier prototype of Rise of the Robots, bootlegs of Ghost Chaser Densei and The Glob, and additional versions of Raiden Fighters 2, Guardian Storm, Pasha Pasha Champ, Lethal Enforcers, and X-Men. General usability improvements include friendlier Apple II disassembly, the restoration of key map support in SDL builds (Linux/macOS), and better initial window positioning on Windows.
You can get the source and Windows binary packages from the download page.

MAMETesters Bugs Fixed

New working machines

New working clones

Machines promoted to working

Clones promoted to working

New machines marked as NOT_WORKING

New clones marked as NOT_WORKING

New working software list additions

Software list items promoted to working

New NOT_WORKING software list additions

Translations added or modified

Source Changes

submitted by cuavas to MAME [link] [comments]

[Beyond 3.0] Server Downtime for ~9 hours | Frontier Livestream with devs at 2 PM GMT

Update is LIVE!

Beyond 3.0 Launch Day Livestream

Beyond 3.0 CGI Trailer - Commander Chronicles: The Deal

Will Flanagan on the forums:
Hi everyone,
Soon you'll be able to strap yourself into the cockpit of the Chieftain and explore a host of new gameplay features - Chapter One is almost here!
The galaxy servers will be down today from 9.30 AM (GMT) for approximately 9 hours. There is a chance that this could run over, so we really appreciate your patience. As usual with these updates we'll keep you as up to date as possible.
While you wait, join us for a pre-launch livestream at 2:00 PM (GMT) for a Beyond - Chapter One recap with members of the development team on YouTube here.
We'll post the changelog soon, and add update information to the thread as it comes in.
Keep an eye on our social media channels too for regular updates on the server status. We will try to respond to as many queries as possible, but we will give everyone advanced notice for when the servers come back online, and social media is your best bet for knowing when the servers are back up and running!
Thanks!

Elite Dangerous: Beyond - The Features of 3.0

(Includes improvements Coming Soon for Crime and Ship Destruction, Kill Warrant Scanner, Superpower Bounties)
Edward Lewis:
Here's an overview of all the features coming to Elite Dangerous: Beyond - Chapter One. With one or two exceptions (outlined within the section) the information below is how the feature will work at launch of Elite Dangerous 3.0.

Patch Notes

New features for 3.0

Crime
Missions
Ships
Trade Data & Galaxy Map
Engineers
Weapons and modules
Galnet Audio
Installation and Megaship Interactions
Surface material system
Quality of Life
Misc Features
Consoles

Fixes and Improvements

This update includes well over 1000 fixes for various issues that have been discovered and investigated during the development process since the release of 2.4. For the sake of clarity, we have primarily listed below fixes for issues that have been reported to us by the community or other important changes.
Art
Audio
Camera Suite
Consoles
Controls & Control Devices
Engineers
Galaxy Map/System Map
General Fixes & Tweaks
Holo-Me Creator
Hyperspace/Supercruise
Installations/POIs/USSs
Launcher (PC Only)
Missions
Multi-Crew
NPCs
Outfitting
Player Journal
Powerplay
Render
Ships & SRV
General Ship Fixes and Improvements
Anaconda
Asp Explorer
Cobra Mk. III
Diamondback Explorer
F63 Condor
Federal Gunship
Imperial Clipper
Imperial Courier
Imperial Cutter
Orca
Python
SRV
Type 7
Type 9 Heavy
Type 10 Defender
Viper Mk4
Stability Fixes
Starports/Outposts/Surface Ports
Synthesis
User Interface
VR
Weapons & Modules
Wings
submitted by ChristianM to EliteDangerous [link] [comments]

MAME 0.207

MAME 0.207

It’s almost the end of February, and more importantly it’s time for MAME 0.207 to be released! We’ve added two Nintendo Game & Watch titles this month: Fire (wide screen) and Snoopy Tennis. If you’re at all interested in plug-and-play TV games, this is going to be a huge update, with all the newly-supported JAKKS Pacific titles, including Disney Princess, Dragon Ball Z, Nicktoons, Spider-Man, and Wheel of Fortune, as well as a number of matching Game-Keys. The other big batch of additions this month comes in the form of a whole lot of e-kara cartridge dumps from Japan. For younger players, we’re steadily filling out the V.Smile software list, with eighteen newly supported titles. The VGM software list has been updated with the latest video game music rips, and we’ve added some more original floppy dumps and clean cracks to the Apple II software lists.
With the latest improvements to the MIPS R4000 CPU, WD33C93 SCSI and SGI Newport graphics emulation, it’s possible to install and run IRIX in MAME. This is a milestone achievement, and wouldn’t have been possible without some amazing dedication and collaboration on the part of the contributors and team members involved. With the addition of graphics and mouse support, Windows 1.0 runs on MAME’s Tandy 2000 emulation. MAME continues to add additional variants of supported systems, including the HP 9825T and the Esselte Modulab educational system.
Newly supported arcade games include an earlier prototype of Rise of the Robots, bootlegs of Ghost Chaser Densei and The Glob, and additional versions of Raiden Fighters 2, Guardian Storm, Pasha Pasha Champ, Lethal Enforcers, and X-Men. General usability improvements include friendlier Apple II disassembly, the restoration of key map support in SDL builds (Linux/macOS), and better initial window positioning on Windows.
You can get the source and Windows binary packages from the download page.

MAMETesters Bugs Fixed

New working machines

New working clones

Machines promoted to working

Clones promoted to working

New machines marked as NOT_WORKING

New clones marked as NOT_WORKING

New working software list additions

Software list items promoted to working

New NOT_WORKING software list additions

Translations added or modified

Source Changes

submitted by cuavas to cade [link] [comments]

Part-1_11.1. Python Strings Integer Linear Programming  0-1 Binary Constraints ... Zero - YouTube Python Code for Encryption and Decryption(MIT) Data Miner ver1.0 Python Python & DW data analysis and visualization - 1

So they are severely behind schedule (Python 3.1 isn’t in the future, it’s in the distant past). Given that, I still don’t think the answer was misleading, just not stringently updated every time the Python development schedule changed in a new, arbitrary direction. Anyway, this gave me the opportunity to remove some irrelevant and outdated stuff from my answer. Python 3 This is a tutorial in Python3, but this chapter of our course is available in a version for Python 2.x as well: ... The conversion result will be zero padded for numeric values.-The converted value is left adjusted : If no sign (minus sign e.g.) is going to be written, a blank space is inserted before the value. + A sign character ("+" or "-") will precede the conversion (overrides a ... I mean geeting back integers from padded strings. Reply. Aniruddha Chaudhari. November 8, 2017 at 4:37 pm . Hey Kęstutis, Glad to see you here! There is no padding for integer values in Python. So, when you convert the number from integer to string, there will be no padded zeros. Use int() function to convert the string into the integer. Reply. Charlie Munro. November 9, 2017 at 9:33 pm . Yes ... In future Python releases the mode of fileobj will not be used. ... Changed in version 3.2: Support for zero-padded and unseekable files was added. Changed in version 3.3: The io.BufferedIOBase.read1() method is now implemented. Changed in version 3.4: Added support for the 'x' and 'xb' modes. Changed in version 3.5: Added support for writing arbitrary bytes-like objects. The read() method now ... This module performs conversions between Python values and C structs represented as Python bytes objects. This can be used in handling binary data stored in files or from network connections, among other sources. It uses Format Strings as compact descriptions of the layout of the C structs and the intended conversion to/from Python values. Note. By default, the result of packing a given C ... Data is padded to a length of pad_to and the windowing function window is applied to the signal. Parameters: x: 1-D array or sequence. Array or sequence containing the data. Fs: scalar. The sampling frequency (samples per time unit). It is used to calculate the Fourier frequencies, freqs, in cycles per time unit. The default value is 2. window: callable or ndarray. A function or a vector of ... @mVChr: str.format() is the wrong tool anyway, you would use format(i, 'b') instead. Take into account that that also gives you padding and alignment options though; format(i, '016b') to format to a 16-bit zero-padded binary number. To do the same with bin() you'd have to add a str.zfill() call: bin(i)[2:].zfill(16) (no need to call str()!).format()'s readability and flexibility (dynamic ... python - überprüfung gerade/ungerade zahlen, und ändern Ausgänge Anzahl Größe Habe ich ein paar Probleme zu lösen, die für eine Zuordnung und bin ein wenig stecken. Die Frage ist, ein Programm zu schreiben, wird der Benutzer zur Eingabe eine ungerade Zahl ist (überprüfen Sie, es ist seltsam), dann drucken Sie eine upside-down-Pyramide von Sternen, basierend auf der Größe der Eingabe. How to get 0-padded binary representation of an integer ; By khachik 10 comments 2010-12-12 11:30. Formatting instruction to String starts with "%" and 0 is the character By default Java left pad with space and if you add 0 then Integer will be There is also the java.lang.Integer.toString (int i, int base) method, which would be more appropriate if your code might one day handle bases ... : adds formatting options for this variable (otherwise it would represent decimal 6) 08 formats the number to eight digits zero-padded on the left; b converts the number to its binary representation; If you’re using a version of Python 3.6 or above, you can also use f-strings: >>> f'{6:08b}' '00000110' Solution 2: Just another idea:

[index] [6799] [1107] [10369] [22007] [9662] [20470] [9061] [11185] [24948] [4338]

Part-1_11.1. Python Strings

This video shows how to formulate relational/logical constraints using binary or 0-1 integer variables: ~~~~~ This channel does not contain ads. Suppor... Day 6 LetsUpgrade - Free Coding School - 🐍 Python - Zero to Hero Batch 3 - Duration: 2:05:47. ... Best Binary Options Strategy 2020 - 2 Minute Strategy LIVE TRAINING! - Duration: 43:42. BLW ... Best Binary Options Strategy 2020 - 2 Minute Strategy LIVE TRAINING! - Duration: 43:42. BLW Online Trading Recommended for you. 43:42. Linux Tutorial for Beginners: Introduction to Linux Operating ... Zero subscribed to a channel 1 month ago ... Python Programming tutorials, going further than just the basics. Learn about machine learning, finance, data analysis, robotics, web development, game ... Hello, everyone, this is my first face cam video hope you all like it. In this video, I have given the introduction about what will be coming in the next videos as a series "Everything Binary ... Best Binary Options Strategy 2020 - 2 Minute Strategy LIVE TRAINING! ... 🐍 Python - Zero to Hero Batch 3 - Duration: 2:00:47. LetsUpgrade 42,172 views. 2:00:47. Python Tutorial - Python for ... Best Binary Options Strategy 2020 - 2 Minute Strategy LIVE TRAINING! - Duration: 43:42. BLW Online Trading Recommended for you. 43:42. Upgrading/Replacing the hard drive in a Laptop with a solid ...

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