python 命令列程式的自動化互動

keywords: python 命令列程式 自動化 互動

以這個python程式為例:

# coding:utf8

# python3
import random
first_num =
str(random.randint(0,
10))second_num =
str(random.randint(0,
10))first_input =
input
('input {}: '
.format
(first_num)
)second_input =
input
('input {}: '
.format
(second_num)
)if first_num==first_input and second_num==second_input:
print
('right!'
)else
:print
('wrong!'
)

# coding:utf-8

# python3
import sys
import re
import subprocess
from threading import thread
class
processinteraction
: process =
none
def__init__
(self, command)
: self.process = subprocess.popen(
command, stdin=subprocess.pipe, stdout=subprocess.pipe)
def__del__
(self)
: self.process.stdin.close(
) self.process.stdout.close(
)def
recvline
(self)
:return self.process.stdout.readline(
).decode(
'utf8'
)def
recv_n
(self, n)
:return self.process.stdout.read(n)
.decode(
'utf8'
)def
recvuntil
(self, want_end_str)
: current_str =
''while
true
: current_str += self.recv_n(1)
if current_str.endswith(want_end_str)
:return current_str
defrecvuntil_re
(self, want_re_str)
: current_str =
''while
true
: current_str += self.recv_n(1)
s = re.search(want_re_str, current_str)
if s:
return
[current_str, s]
defsend
(self, send_str)
: final_bytes = send_str.encode(
'utf8'
) self.process.stdin.write(final_bytes)
self.process.stdin.flush(
)def
sendline
(self, send_str)
: self.send(send_str+
'\n'
)def
interact
(self)
:def
recv_loop()
:while
true
: c = self.recv_n(1)
# print 寫到控制台會有延時，直接用系統io寫
sys.stdout.write(c)
sys.stdout.flush(
)def
send_loop()
:while
true
: send_str =
input()
self.sendline(send_str)
recv_thread = thread(target=recv_loop)
send_thread = thread(target=send_loop)
recv_thread.start(
) send_thread.start(
) recv_thread.join(
) send_thread.join(
)command =
['py'
,'-3'
,'want_right.py'
]pi = processinteraction(command)
for i in
range(2
):content = pi.recvuntil_re(
r'input (\d+): '
)print
(content[0]
) num = content[1]
.group(1)
print
(repr
(num)
) pi.sendline(num)
content = pi.recvline(
)print
(content)

輸出：

input 5:

'5'input 0:
'0'right!

&&&&&&& 貌似只對python指令碼好用，exe和elf都不行，讀不到輸出，問題待解決

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