Using the Python Interpreter

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Invoking the Interpreter

Python interpreter is usually installed as /usr/local/bin/python3.7 machines where available; Inclusion / / Jatha Python interpreter/field operator is usually installed as /usr/local/bin/python3.7 machines where available; Adding / usual / binary on the Unix test method that allows us to start by writing the order:

python3.7

Because of the choice of the optional interpreter living optional, other locations are possible; check with Python Home or your local scheme manager. (For example, / / Local / usr python is another popular site.)
In Windows machines, the installation of Python is usually placed in C: \ Python37, although this can be changed if the installers are running. In this guide, you can record the following DOS directory for the window:

set path=%path%;C:\python37

When writing the Control-D of the Unix, the Control-Z in Windows, the most important example is that the interpreter leaves the zero exit code. If this does not work, you can leave the interpreter by writing the following order: exit ().

Interpretation of Interpreting Interpretation, including conversion date and completing the system code support feature direct reading program. You can also check to see if emergency antennas in the line-up support the Control-P on the first Python line. If they are adequate, you have to change the command line; see Appendix re-registration and date of opening key. If nothing seems to happen, or if ^ P is returned, the phone control method is not available; Only the back button can be used to count the letters from the current line.

                             Image result for python interpreter images

The interpreter works best on the Unix shell: When called TTY's standard tactics, reads and executes orders in moderation; When called a file name or file such as raw content discussions, reads and raises the contents of the file.

Other ways to start a Python command interpreter is -c [arg] ..., which produces the author (s) of the command, same as -c optionally in the room. Because Python's statements are often found in places or other unique features of the shell, it is often advisable to quote the general order with a single quote.

Some parts of Python are also useful as textual. This can be called by using the python -m [arg] module ..., which handles the source file as if the full name is specified in the command line.
If the text file is used, it is sometimes useful to be able to write and access the integration process. This can be done through your writing. All command line options are described on the command line and in the environment.

Argument Passing

If the unknown, after the name of the text and the debate it became a list, and it was assigned to the sys syndicate system. You can also find this list by attaching ss sys import. A long list is at least one; If there is no rule and no reason, sys.argv [0] is a blank letter. When the character name is defined as '-' (which means the usual suggestions), sys.argv [0] is defined as '-'. When used, sys.argv [0] is defined as 'c'. When you use the module, sys.argv [0] is set to fill the module name. Choices in -cm or version of the rules are not used in the Python selection process, but for the sys.argv in the order or procedure it works.

Interactive Mode

When the orders are read in TTY, the spokesperson calls a moderate approach. In this case, the following order will be requested from the index below, usually, three than the above (>>>); Connections will be announced in the second order, with three points (...). The interpreter introduces a welcome message showing his / her number and notification of print rights before printing the first command line

$ python3.7
 
Python 3.7 (default, Sep 16 2015, 09:25:04)
 
[GCC 4.8.2] on linux
 
Type "help", "copyright", "credits" or "license" for more information.
 
>>> 
 

The timetable is required when you arrive in a large building. For example, look at this statement if:

>>> the_world_is_flat = True
 
>>> if the_world_is_flat:
 
...     print("Be careful not to fall off!")
 
...
 
Be careful not to fall off!
 

The Interpreter and Its Environment

Source code Encoding

In contrast, Python files are treated as described in UTF-8. 

# -*- coding: encoding -*-

Voting, the most common languages in the world can be used on the same timeframe, letters, and comments - even with library equipment using only ASCII characters

# -*- coding: cp1252 -*-


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