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A D Vishnu Prasad
2020-05-29 19:15:25 +05:30
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commit bd46830659
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Notes/03_Program_organization/04_Modules.md
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@@ -1,9 +1,9 @@
[Contents](../Contents) \| [Previous (3.3 Error Checking)](03_Error_checking) \| [Next (3.5 Main Module)](05_Main_module)
[Contents](../Contents.md) \| [Previous (3.3 Error Checking)](03_Error_checking) \| [Next (3.5 Main Module)](05_Main_module)
# 3.4 Modules
This section introduces the concept of modules and working with functions that span
multiple files.
This section introduces the concept of modules and working with functions that span
multiple files.
### Modules and import
@@ -164,7 +164,7 @@ Each module loads and executes only *once*.
changing the source code for a module. Because of the module cache `sys.modules`,
repeated imports always return the previously loaded module--even if a change
was made. The safest way to load modified code into Python is to quit and restart
the interpreter.
the interpreter.
### Locating Modules
@@ -214,7 +214,7 @@ not readily accessible from the current working directory.
For this exercise involving modules, it is critically important to
make sure you are running Python in a proper environment. Modules are
usually when programmers encounter problems with the current working
directory or with Python's path settings. For this course, it is
directory or with Python's path settings. For this course, it is
assumed that you're writing all of your code in the `Work/` directory.
For best results, you should make sure you're also in that directory
when you launch the interpreter. If not, you need to make sure
@@ -338,4 +338,4 @@ also contains `read_portfolio()` and `read_prices()` functions. And
finally, `pcost.py` which computes the portfolio cost, but makes use
of the `read_portfolio()` function written for the `report.py` program.
[Contents](../Contents) \| [Previous (3.3 Error Checking)](03_Error_checking) \| [Next (3.5 Main Module)](05_Main_module)
[Contents](../Contents.md) \| [Previous (3.3 Error Checking)](03_Error_checking) \| [Next (3.5 Main Module)](05_Main_module)