我正在尝试从多个 .pbf 文件创建单个 SQL 表。
我正在使用 osm2pgsql 将文件加载到远程数据库中,并尝试使用 python 和 pexpect 自动化该过程。
虽然第一个 osm2pgsql 命令成功运行,但后续命令在打印“使用 PBF 解析器”后似乎卡住了。
这是我的代码:
child = pexpect.spawn('bash', timeout=20000)
child.logfile_read = sys.stdout.buffer # show output for debugging
filenames = os.listdir('pbf_files')
for i, filename in enumerate(filenames):
print(filename)
upload_command_args = [
"pbf_files/{}".format(filename),
"-l",
"-s",
"-d", db_name,
"-U", username,
"-P", port,
"-H", host,
"-W",
"-S", "default.style",
"-r", "pbf",
"-p", table_name,
"--hstore",
]
# Need the append option since table already exists after first iteration
if i > 0:
upload_command_args = upload_command_args + ["--append"]
print(upload_command_args)
child.sendline('osm2pgsql ' + ' '.join(upload_command_args))
child.expect('Password:')
child.sendline('myFakePass')
child.expect('Osm2pgsql took .+ overall')
child.close()
sys.exit(child.status)
第 0 次迭代正常运行,但第 1 次在 shell 打印后卡住:
Reading in file: pbf_files/my_partition_1.pbf
Using PBF parser.
我是否误解了 .expect() 的工作原理?