How to keep track console output into a log file for python?

class ReDirectSTD(object):
    def __init__(self, fpath=None, console='stdout', immediately_visiable=False):
        import sys
        import os
        assert console in ['stdout', 'stderr']
        self.console = sys.stdout if console == "stdout" else sys.stderr
        self.file = fpath
        self.f = None
        self.immediately_visiable = immediately_visiable
        if fpath is not None:
            # Remove existing log file
            if os.path.exists(fpath):
                os.remove(fpath)
        if console == 'stdout':
            sys.stdout = self
        else:
            sys.stderr = self

    def __del__(self):
        self.close()

    def __enter__(self):
        pass

    def __exit__(self, **args):
        self.close()

    def write(self, msg):
        self.console.write(msg)
        if self.file is not None:
            if not os.path.exists(os.path.dirname(os.path.abspath(self.file))):
                os.mkdir(os.path.dirname(os.path.abspath(self.file)))
            if self.immediately_visiable:
                with open(self.file, 'a') as f:
                    f.write(msg)
            else:
                if self.f is None:
                    self.f = open(self.file, 'w')
                self.f.write(msg)

    def flush(self):
        self.console.flush()
        if self.f is not None:
            self.f.flush()
            import os
            os.fsync(self.f.fileno())

    def close(self):
        self.console.close()
        if self.f is not None:
            self.f.close()


def may_mkdir(fname):
    if not os.path.exists(os.path.dirname(os.path.abspath(fname))):
        os.makedirs(os.path.dirname(os.path.abspath(fname)))

def del_mkdir(folder):
    if os.path.exists(folder):
        shutil.rmtree(folder)  # delete output folder
    os.makedirs(folder)  # make new output folder


def time_str(fmt=None):
    if fmt is None:
        fmt = '%Y-%m-%d_%H:%M:%S'
    return datetime.datetime.today().strftime(fmt)


# log
logfiletime = time_str()
stdout_file = os.path.join('log', 'stdout_{}.txt'.format(logfiletime))
stderr_file = os.path.join('log', 'stderr_{}.txt'.format(logfiletime))
may_mkdir(stdout_file)
may_mkdir(stderr_file)
if 1:
    ReDirectSTD(stdout_file, 'stdout', False)
    ReDirectSTD(stderr_file, 'stderr', False)

How to run sudo in windows?

> runas /noprofile /user:mymachine\administrator cmd
> runas /profile /env /user:mydomain\admin "mmc %windir%\system32\dsa.msc"
> runas /env /user:user@domain.microsoft.com "notepad \"my file.txt\""

NOTE:  Enter user's password only when prompted.
NOTE:  /profile is not compatible with /netonly.
NOTE:  /savecred is not compatible with /smartcard.

How to build protobuf in ubuntu?

git clone https://github.com/protocolbuffers/protobuf.git
cd protobuf
git submodule update --init --recursive
./autogen.sh 

 ./configure
 make
 make check
 sudo make install
 sudo ldconfig # refresh shared library cache.
 

How to overwrite sudo python for libuvc in ubuntu, lepton?

sudo sh -c "echo 'SUBSYSTEMS==\"usb\", ATTRS{idVendor}==\"1e4e\", ATTRS{idProduct}==\"0100\", SYMLINK+=\"pt1\", GROUP=\"usb\", MODE=\"666\"' > /etc/udev/rules.d/99-pt1.rules"

How to build boost 1.65.0 in Ubuntu?

1. Go to the root directory, cd boost_1_65_0.
2. Run ./bootstrap.sh --prefix=PREFIX where PREFIX is the directory where you want Boost. Build to be installed.
3. Run ./b2 install .
4. Add PREFIX/bin to your PATH environment variable.

Ubuntu how to convert png to jpg and rename the filename?

convert image from png to jpg:-
mogrify -format jpg *.png

remove original png files:-
rm *.png

rename the new jpg files:-
mmv "*.jpg" "ffhq_#1.jpg"

How to create a windows batch script for activate conda?

call conda activate python35
cmd
pause

then save as a.cmd