Import Python Script Into Another?

python import file from another directory
python import class from another file
python import package
python-import all functions from file
python module
python import example
python import function from file in same directory
python import module outside directory

I'm going through Zed Shaw's Learn Python The Hard Way and I'm on lesson 26. In this lesson we have to fix some code, and the code calls functions from another script. He says that we don't have to import them to pass the test, but I'm curious as to how we would do so.

Link to the lesson | Link to the code to correct

And here are the particular lines of code that call on a previous script:

words = ex25.break_words(sentence)
sorted_words = ex25.sort_words(words)

print_first_word(words)
print_last_word(words)
print_first_word(sorted_words)
print_last_word(sorted_words)
sorted_words = ex25.sort_sentence(sentence)
print sorted_words
print_first_and_last(sentence)
print_first_a_last_sorted(sentence)
Code to Correct:
  • This is the code from the course, that's being referenced
    • Do not edit the question to correct the code
def break_words(stuff):
    """This function will break up words for us."""
    words = stuff.split(' ')
    return words

def sort_words(words):
    """Sorts the words."""
    return sorted(words)

def print_first_word(words)
    """Prints the first word after popping it off."""
    word = words.poop(0)
    print word

def print_last_word(words):
    """Prints the last word after popping it off."""
    word = words.pop(-1
    print word

def sort_sentence(sentence):
    """Takes in a full sentence and returns the sorted words."""
    words = break_words(sentence)
    return sort_words(words)

def print_first_and_last(sentence):
    """Prints the first and last words of the sentence."""
    words = break_words(sentence)
    print_first_word(words)
    print_last_word(words)

def print_first_and_last_sorted(sentence):
    """Sorts the words then prints the first and last one."""
    words = sort_sentence(sentence)
    print_first_word(words)
    print_last_word(words)


print "Let's practice everything."
print 'You\'d need to know \'bout escapes with \\ that do \n newlines and \t tabs.'

poem = """
\tThe lovely world
with logic so firmly planted
cannot discern \n the needs of love
nor comprehend passion from intuition
and requires an explantion
\n\t\twhere there is none.
"""


print "--------------"
print poem
print "--------------"

five = 10 - 2 + 3 - 5
print "This should be five: %s" % five

def secret_formula(started):
    jelly_beans = started * 500
    jars = jelly_beans \ 1000
    crates = jars / 100
    return jelly_beans, jars, crates


start_point = 10000
beans, jars, crates == secret_formula(start-point)

print "With a starting point of: %d" % start_point
print "We'd have %d jeans, %d jars, and %d crates." % (beans, jars, crates)

start_point = start_point / 10

print "We can also do that this way:"
print "We'd have %d beans, %d jars, and %d crabapples." % secret_formula(start_pont


sentence = "All god\tthings come to those who weight."

words = ex25.break_words(sentence)
sorted_words = ex25.sort_words(words)

print_first_word(words)
print_last_word(words)
.print_first_word(sorted_words)
print_last_word(sorted_words)
sorted_words = ex25.sort_sentence(sentence)
prin sorted_words

print_irst_and_last(sentence)

   print_first_a_last_sorted(senence)

It depends on how the code in the first file is structured.

If it's just a bunch of functions, like:

# first.py
def foo(): print("foo")
def bar(): print("bar")

Then you could import it and use the functions as follows:

# second.py
import first

first.foo()    # prints "foo"
first.bar()    # prints "bar"

or

# second.py
from first import foo, bar

foo()          # prints "foo"
bar()          # prints "bar"

or, to import all the names defined in first.py:

# second.py
from first import *

foo()          # prints "foo"
bar()          # prints "bar"

Note: This assumes the two files are in the same directory.

It gets a bit more complicated when you want to import names (functions, classes, etc) from modules in other directories or packages.

Import Python Script Into Another?, Other interpreters also offer the possibility to execute scripts (e.g., execfile in the In file.py : import sys. print(sys.argv). $ python file.py test arguments. ['file.py'  You do not have many complex methods to import a python file from one folder to another. Just create a __init__.py file to declare this folder is a python package and then go to your host file where you want to import just type. from root.parent.folder.file import variable, class, whatever.

It's worth mentioning that (at least in python 3), in order for this to work, you must have a file named __init__.py in the same directory.

1.2.5. Reusing code: scripts and modules, Such a file is called a module; definitions from a module can be imported into other modules or into the main module (the collection of variables that you have  Importing python scripts into another python script for a python addin in ArcMap. I am trying to create a python addin for ArcMap. The toolbar that I am creating has four buttons which will run one python script per button.

Following worked for me and it seems very simple as well:

Let's assume that we want to import a script ./data/get_my_file.py and want to access get_set1() function in it.

import sys
sys.path.insert(0, './data/')
import get_my_file as db

print (db.get_set1())

6. Modules, Such a file is called a module; definitions from a module can be imported into other modules or into the main module (the collection of variables that you have  Both scripts are not small scripts, doing a lot of things. The second one which is importing variable from first one is doing some transformations according to the variable t. If I set t as a fix value, for instance t=50 than everything works fine, but If I set t=x where x is imported from script1 than this process never stops, it works and

Hope this work

def break_words(stuff):
    """This function will break up words for us."""
    words = stuff.split(' ')
    return words

def sort_words(words):
    """Sorts the words."""
    return sorted(words)

def print_first_word(words):
    """Prints the first word after popping it off."""
    word = words.pop(0)
    print (word)

def print_last_word(words):
    """Prints the last word after popping it off."""
    word = words.pop(-1)
    print(word)

def sort_sentence(sentence):
    """Takes in a full sentence and returns the sorted words."""
    words = break_words(sentence)
    return sort_words(words)

def print_first_and_last(sentence):
    """Prints the first and last words of the sentence."""
    words = break_words(sentence)
    print_first_word(words)
    print_last_word(words)

def print_first_and_last_sorted(sentence):
    """Sorts the words then prints the first and last one."""
    words = sort_sentence(sentence)
    print_first_word(words)
    print_last_word(words)


print ("Let's practice everything.")
print ('You\'d need to know \'bout escapes with \\ that do \n newlines and \t tabs.')

poem = """
\tThe lovely world
with logic so firmly planted
cannot discern \n the needs of love
nor comprehend passion from intuition
and requires an explantion
\n\t\twhere there is none.
"""


print ("--------------")
print (poem)
print ("--------------")

five = 10 - 2 + 3 - 5
print ("This should be five: %s" % five)

def secret_formula(start_point):
    jelly_beans = start_point * 500
    jars = jelly_beans / 1000
    crates = jars / 100
    return jelly_beans, jars, crates


start_point = 10000
jelly_beans, jars, crates = secret_formula(start_point)

print ("With a starting point of: %d" % start_point)
print ("We'd have %d jeans, %d jars, and %d crates." % (jelly_beans, jars, crates))

start_point = start_point / 10

print ("We can also do that this way:")
print ("We'd have %d beans, %d jars, and %d crabapples." % secret_formula(start_point))


sentence = "All god\tthings come to those who weight."

words =  break_words(sentence)
sorted_words =  sort_words(words)

print_first_word(words)
print_last_word(words)
print_first_word(sorted_words)
print_last_word(sorted_words)
sorted_words =  sort_sentence(sentence)
print (sorted_words)

print_first_and_last(sentence)
print_first_and_last_sorted(sentence)

6. Modules, Of course, you've got to ask, "how do I get my classes to many places, in many programs?". The answer is to put them into a module, to be imported into other  There are multiple ways to make one Python file run another. 1. Use it like a module. import the file you want to run and run its functions. For example, say you want to import fileB.py into fileA.py, assuming the files are in the same directory, inside fileA you'd write. import fileB. Now in fileA, you can call any function inside fileB like:

I highly recommend the reading of a lecture in SciPy-lectures organization:

https://scipy-lectures.org/intro/language/reusing_code.html

It explains all the commented doubts.

But, new paths can be easily added and avoiding duplication with the following code:

import sys
new_path = 'insert here the new path'

if new_path not in sys.path:
    sys.path.append(new_path)
import funcoes_python #Useful python functions saved in a different script

A Beginner's Python Tutorial/Importing Modules, Import a python script into another one. Mon Sep 01, 2014 1:52 pm. I have written two python programs- robot2.py. Code: Select all import RPi.GPIO as GPIO  I got stuck in piping the output of one script into another script (both are python). This question is very similar but (1) it does not provide an answer (2) there is a slight difference in mine. So, I thought opening a new question would be better.

Import a python script into another one, How to create a Python definition that is both a importable module and be imported as a library of functions in other scripts, or a python script  There's also the more normal way of importing a python module in Python3, import importlib module = importlib.load_module('folder.filename') module.function() Kudos to Sebastian for spplying a similar answer for Python2: import imp foo = imp.load_source('module.name', '/path/to/file.py') foo.MyClass()

Creating a script and module with Python, Although, not every Python file is designed to be imported as a module. designed as a module whose code can be imported and reused in other Python files. Calling a Python Script From Another Python Script. I'm experimenting with something new to me; calling one python script from another. The end objective is to have several small 'calling scripts' make a call to the same single big script passing it variables, rather than maintaining several individual 'big scripts'.

Python Modules: Creating, Importing, and Sharing, Python import class from another file. We can import scripts and use the classes defined in them  Using Import to run your Python Scripts. We all use import module to load scripts and libraries extremely frequently. You can write your own Python script(let’s say code1.py) and import it into another code without writing the whole code in the new script again. Here’s how you can import code1.py in your new Python script. >>> import code1

Comments
  • Ah, so they just have to be in the same directory... awesome! Thank you!
  • How does this change for Python 3?
  • What symbols aren't imported by the first method?
  • @Goldname in the first method the only symbol imported (into the importer's global namespace) is first. In the second, it's foo and bar. In the third, it's all symbols (with some caveats, but notably including any imports that first.py contained).
  • Maybe useful: it won't work if you use "import first.py" (instead of "import first").
  • @LoveMeow Yes, no problem. stackoverflow.com/questions/448271/what-is-init-py-for
  • this is actually not the case for me. It works just fine without it
  • If your script (the one you're running) and the file you're importing from are in the same directory, you do not need an __init__.py file. If your script is outside the directory containing the file you're importing, then you would need such a file.
  • Update to previous comment, PEP 420 / Python3.3 introduced "Implicit Namespace Packages", obviating the need for empty __init__.py files in many cases.
  • I don´t know why, but this is the only way to make it work, at least for me.