Re-organize directory structure (#4971)

See discussion in #2491

Co-authored-by: Ivan Levkivskyi <ilevkivskyi@dropbox.com>

stdlib/@python2/smtplib.pyi

@@ -0,0 +1,86 @@
+from typing import Any
+
+class SMTPException(Exception): ...
+class SMTPServerDisconnected(SMTPException): ...
+
+class SMTPResponseException(SMTPException):
+    smtp_code: Any
+    smtp_error: Any
+    args: Any
+    def __init__(self, code, msg) -> None: ...
+
+class SMTPSenderRefused(SMTPResponseException):
+    smtp_code: Any
+    smtp_error: Any
+    sender: Any
+    args: Any
+    def __init__(self, code, msg, sender) -> None: ...
+
+class SMTPRecipientsRefused(SMTPException):
+    recipients: Any
+    args: Any
+    def __init__(self, recipients) -> None: ...
+
+class SMTPDataError(SMTPResponseException): ...
+class SMTPConnectError(SMTPResponseException): ...
+class SMTPHeloError(SMTPResponseException): ...
+class SMTPAuthenticationError(SMTPResponseException): ...
+
+def quoteaddr(addr): ...
+def quotedata(data): ...
+
+class SSLFakeFile:
+    sslobj: Any
+    def __init__(self, sslobj) -> None: ...
+    def readline(self, size=...): ...
+    def close(self): ...
+
+class SMTP:
+    debuglevel: Any
+    file: Any
+    helo_resp: Any
+    ehlo_msg: Any
+    ehlo_resp: Any
+    does_esmtp: Any
+    default_port: Any
+    timeout: Any
+    esmtp_features: Any
+    local_hostname: Any
+    def __init__(self, host: str = ..., port: int = ..., local_hostname=..., timeout=...) -> None: ...
+    def set_debuglevel(self, debuglevel): ...
+    sock: Any
+    def connect(self, host=..., port=...): ...
+    def send(self, str): ...
+    def putcmd(self, cmd, args=...): ...
+    def getreply(self): ...
+    def docmd(self, cmd, args=...): ...
+    def helo(self, name=...): ...
+    def ehlo(self, name=...): ...
+    def has_extn(self, opt): ...
+    def help(self, args=...): ...
+    def rset(self): ...
+    def noop(self): ...
+    def mail(self, sender, options=...): ...
+    def rcpt(self, recip, options=...): ...
+    def data(self, msg): ...
+    def verify(self, address): ...
+    vrfy: Any
+    def expn(self, address): ...
+    def ehlo_or_helo_if_needed(self): ...
+    def login(self, user, password): ...
+    def starttls(self, keyfile=..., certfile=...): ...
+    def sendmail(self, from_addr, to_addrs, msg, mail_options=..., rcpt_options=...): ...
+    def close(self): ...
+    def quit(self): ...
+
+class SMTP_SSL(SMTP):
+    default_port: Any
+    keyfile: Any
+    certfile: Any
+    def __init__(self, host=..., port=..., local_hostname=..., keyfile=..., certfile=..., timeout=...) -> None: ...
+
+class LMTP(SMTP):
+    ehlo_msg: Any
+    def __init__(self, host=..., port=..., local_hostname=...) -> None: ...
+    sock: Any
+    def connect(self, host=..., port=...): ...