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If we have data, let’s look at data. If all we have are opinions, let’s go with mineJim Barksdale,
pseudo_encrypt(int) can be used as a pseudo-random generator of unique values. It produces an integer output that is uniquely associated to its integer input (by a mathematical permutation), but looks random at the same time, with zero collision. This is useful to communicate numbers generated sequentially without revealing their ordinal position in the sequence (for ticket numbers, URLs shorteners, promo codes...)

sudo apt-get install jpegoptim imagemagick optipngfind . -type f \( -name "*.jpeg" -or -name "*.jpg" \) -exec mogrify -resize x100 -quality 90 {} \; -exec jpegoptim -o --strip-all {} \;find . -type f -name "*.png" -exec mogrify -resize x100 {} \; -exec optipng -o1 {} \;mogrify -resize ШИРИНАxВЫСОТА -quality КАЧЕСТВОoptipng -o9 file.pngoptipng -o5 file.png
python3.7 -vpython3 -vwhich python3.7; which python3apt-get install -y \
build-essential git libexpat1-dev libssl-dev zlib1g-dev \
libncurses5-dev libbz2-dev liblzma-dev \
libsqlite3-dev libffi-dev\
libffi-dev tcl-dev linux-headers-generic libgdbm-dev \
libreadline-dev tk-dev \
libdb-dev \
libmpdec-dev \
libncursesw5-devcd /tmp
git clone https://github.com/python/cpython.git
cd cpython
git checkout 3.7--prefix=$HOME/.local/bin а --prefix=$HOME/.localИнсталлер создаст такие диры ${prefix}/{bin,include,lib,share}tree .local до и после make install, тогда не возникнет вопросов, что поставил питон./configure --help--with-lto может сильно ускорить процесс ./configure --prefix=$HOME/.local --enable-optimizations
make -j4
make install├── bin
│ ├── 2to3 -> 2to3-3.7
│ ├── 2to3-3.7
│ ├── easy_install-3.7
│ ├── idle3 -> idle3.7
│ ├── idle3.7
│ ├── pip3
│ ├── pip3.7
│ ├── pydoc3 -> pydoc3.7
│ ├── pydoc3.7
│ ├── python3 -> python3.7
│ ├── python3.7
│ ├── python3.7-config -> python3.7m-config
│ ├── python3.7m
│ ├── python3.7m-config
│ ├── python3-config -> python3.7-config
│ ├── pyvenv -> pyvenv-3.7
│ └── pyvenv-3.7
├── include
│ └── python3.7m
├── lib
│ ├── libpython3.7m.a
│ ├── pkgconfig
│ └── python3.7
│ └── manwhich python3.7не дает результата - проверьте наличие в PATH ~./local/bin$ grep "$HOME/.local/bin:" <<< "$PATH"
/home/sim3x/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin: