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stringio1.py

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try:

import uio as io

except ImportError:

import io

a = io.StringIO()

print('io.StringIO' in repr(a))

print(a.getvalue())

print(a.read())

a = io.StringIO("foobar")

print(a.getvalue())

print(a.read())

print(a.read())

a = io.StringIO()

a.write("foo")

print(a.getvalue())

a = io.StringIO("foo")

a.write("12")

print(a.getvalue())

a = io.StringIO("foo")

a.write("123")

print(a.getvalue())

a = io.StringIO("foo")

a.write("1234")

print(a.getvalue())

a = io.StringIO()

a.write("foo")

print(a.read())

a = io.StringIO()

a.close()

for f in [a.read, a.getvalue, lambda:a.write("")]:

# CPython throws for operations on closed I/O, MicroPython makes

# the underlying string empty unless MICROPY_CPYTHON_COMPAT defined

try:

f()

print("ValueError")

except ValueError:

print("ValueError")