导入Python脚本到另一个？

一尘不染

导入Python脚本到另一个？

python

我正在学习Zed
Shaw的“学习Python的艰难方法”，并且正在第26课中。在这一课中，我们必须修复一些代码，然后代码从另一个脚本调用函数。他说我们不必导入它们即可通过测试，但是我很好奇我们将如何进行。

以下是调用先前脚本的特定代码行：

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)

纠正代码：

这是课程中的代码，正在被引用
- 不要编辑问题以更正代码
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)

阅读 146

2020-12-20

共1个答案

一尘不染

这取决于第一个文件中的代码的结构。

如果只是一堆函数，例如：

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

然后，您可以导入它并使用以下功能：

# second.py
import first

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

要么

# second.py
from first import foo, bar

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

或者，导入first.py中定义的所有名称：

# second.py
from first import *

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

注意：这假定两个文件在同一目录中。

当您想从其他目录或包中的模块导入名称（函数，类等）时，它会变得更加复杂。

2020-12-20