我正在尝试使用
下载数据appcfg.py download_data --url=http://cayotkanawa.appspot.com/_ah/
remote_api --filename=datasave.csv
但我明白了。我该怎么做才能获得数据？
C:\Users\Honjo>appcfg.py download_data --url=http://cayotkanawa.appspot.com/_ah/
remote_api --filename=datasave.csv
Usage: appcfg.py [options] <action>
Action must be one of:
backends: Perform a backend action.
backends configure: Reconfigure a backend without stopping it.
backends delete: Delete a backend.
backends list: List all backends configured for the app.
backends rollback: Roll back an update of a backend.
backends start: Start a backend.
backends stop: Stop a backend.
backends update: Update one or more backends.
create_bulkloader_config: Create a bulkloader.yaml from a running application.
cron_info: Display information about cron jobs.
download_app: Download a previously-uploaded app.
download_data: Download entities from datastore.
help: Print help for a specific action.
request_logs: Write request logs in Apache common log format.
resource_limits_info: Get the resource limits.
rollback: Rollback an in-progress update.
set_default_version: Set the default (serving) version.
update: Create or update an app version.
update_cron: Update application cron definitions.
update_dos: Update application dos definitions.
update_indexes: Update application indexes.
update_queues: Update application task queue definitions.
upload_data: Upload data records to datastore.
vacuum_indexes: Delete unused indexes from application.
Use 'help <action>' for a detailed description.
Options:
-h, --help Show the help message and exit.
-q, --quiet Print errors only.
-v, --verbose Print info level logs.
--noisy Print all logs.
-s SERVER, --server=SERVER
The App Engine server.
--insecure Use HTTP when communicating with the server.
-e EMAIL, --email=EMAIL
The username to use. Will prompt if omitted.
-H HOST, --host=HOST Overrides the Host header sent with all RPCs.
--no_cookies Do not save authentication cookies to local disk.
--skip_sdk_update_check
Do not check for SDK updates.
--passin Read the login password from stdin.
-A APP_ID, --application=APP_ID
Set the application, overriding the application value
from app.yaml file.
-V VERSION, --version=VERSION
Set the (major) version, overriding the version value
from app.yaml file.
-r RUNTIME, --runtime=RUNTIME
Override runtime from app.yaml file.
-R, --allow_any_runtime
Do not validate the runtime in app.yaml
--oauth2 Use OAuth2 instead of password auth.
--oauth2_refresh_token=OAUTH2_REFRESH_TOKEN
An existing OAuth2 refresh token to use. Will not
attempt interactive OAuth approval.
--noauth_local_webserver
Do not run a local web server to handle redirects
during OAuth authorization.
-f, --force Force deletion without being prompted.
--has_header Whether the first line of the input file should be
skipped
--loader_opts=LOADER_OPTS
A string to pass to the Loader.initialize method.
--url=URL The location of the remote_api endpoint.
--batch_size=BATCH_SIZE
Number of records to post in each request.
--bandwidth_limit=BANDWIDTH_LIMIT
The maximum bytes/second bandwidth for transfers.
--rps_limit=RPS_LIMIT
The maximum records/second for transfers.
--http_limit=HTTP_LIMIT
The maximum requests/second for transfers.
--db_filename=DB_FILENAME
Name of the progress database file.
--auth_domain=AUTH_DOMAIN
The name of the authorization domain to use.
--log_file=LOG_FILE File to write bulkloader logs. If not supplied then a
new log file will be created, named: bulkloader-log-
TIMESTAMP.
--dry_run Do not execute any remote_api calls
--namespace=NAMESPACE
Namespace to use when accessing datastore.
--num_threads=NUM_THREADS
Number of threads to transfer records with.
--filename=FILENAME The name of the file where output data is to be
written. (Required)
--kind=KIND The kind of the entities to retrieve.
--exporter_opts=EXPORTER_OPTS
A string to pass to the Exporter.initialize method.
--result_db_filename=RESULT_DB_FILENAME
Database to write entities to for download.
--config_file=CONFIG_FILE
Name of the configuration file.
--num_runs=NUM_RUNS Number of runs of each cron job to displayDefault is 5
--no_precompilation Disable automatic Python precompilation.
--backends Update backends when performing appcfg update.
-n NUM_DAYS, --num_days=NUM_DAYS
Number of days worth of log data to get. The cut-off
point is midnight US/Pacific. Use 0 to get all
available logs. Default is 1, unless --append is also
given; then the default is 0.
-a, --append Append to existing file.
--severity=SEVERITY Severity of app-level log messages to get. The range
is 0 (DEBUG) through 4 (CRITICAL). If omitted, only
request logs are returned.
--vhost=VHOST The virtual host of log messages to get. If omitted,
all log messages are returned.
--include_vhost Include virtual host in log messages.
--include_all Include everything in log messages.
--end_date=END_DATE End date (as YYYY-MM-DD) of period for log data.
Defaults to today.
C:\Users\Honjo>
答案 0 :(得分：0)
我不知道这是不是原因，而是来自你的输出：Usage: appcfg.py [options] <action>
您的命令在选项之前有操作
如果它不起作用 - 请尝试appcpg.py help download_data以更好地描述如何使用download_data操作。
答案 1 :(得分：0)
您的命令行看起来是正确的。只是StackOverflow在两行显示您的命令，或者您实际上是在两行中键入它？它应该是一行。
答案 2 :(得分：0)
下面的命令工作是如此奇怪
python "C:\Program Files\Google\google_appengine\appcfg.py" download_data --url=http://cayotkanawa.appspot.com/_ah/
remote_api --filename=datasave.csv
答案 3 :(得分：0)
我遇到了类似的问题，设置app id（s~是HR数据存储区应用的前缀），同时创建了bulkloader配置文件：
appcfg.py create_bulkloader_config -A s~foo-app --url=https://foo-app.appspot.com/_ah/remote_api --filename=bulkloader.yaml
appcfg.py download_data --config_file=bulkloader.yaml --url=http://foo-app.appspot.com/_ah/remote_api --filename=accounts.csv --kind=Account --namespace='lol'