(sysname='LoPy4', nodename='LoPy4', release='1.20.0.rc8', version='v1.9.4-7b83c6d on 2019-03-06', machine='LoPy4 with ESP32', lorawan='1.0.2', sigfox='1.0.1')

Yet my Lopy4 keeps saying it has no notion of the LoRa "mesh" capabilities when I try something like this:

from network import LoRa

# initialise LoRa
# the LoRa parameters (frecq, sf, bandwidth) has to be the same for all
# nodes in the same Pymesh
lora = LoRa(mode=LoRa.LORA, region=LoRa.EU868)

print("Enable Pymesh")
# print(lora.Mesh())
pymesh = lora.Mesh()

# check node state inside Pymesh
# PYMESH_ROLE_DISABLED = 0, ///< The Pymesh stack is disabled.
# PYMESH_ROLE_DETACHED = 1, ///< Not currently participating in a Pymesh.
# PYMESH_ROLE_CHILD    = 2, ///< The Pymesh Child role.
# PYMESH_RlOLE_ROUTER   = 3, ///< The Pymesh Router role.
# PYMESH_ROLE_LEADER   = 4, ///< The Pymesh Leader role.
print("Pymesh node role: %d"%pymesh.state())

print("IPv6 unicast addresses: %s"%pymesh.ipaddr())

I keep getting the following error.

AttributeError: 'LoRa' object has no attribute 'Mesh'

And I can see that no "mesh" elements are present in the LoRa class.

>>> LoRa.
__class__       __name__        ABP             ALWAYS_ON
AS923           AU915           BW_125KHZ       BW_250KHZ
BW_500KHZ       CLASS_A         CLASS_C         CODING_4_5
CODING_4_6      CODING_4_7      CODING_4_8      EU868
LORA            LORAWAN         OTAA            RX_PACKET_EVENT
SLEEP           TX_FAILED_EVENT                 TX_ONLY
TX_PACKET_EVENT                 US915           add_channel
airtime         bandwidth       callback        coding_rate
compliance_test                 events          frequency
has_joined      init            ischannel_free  join
mac             nvram_erase     nvram_restore   nvram_save
power_mode      preamble        remove_channel
set_battery_level               sf              stats
timeout         tx_power

I tried the following builds: LoPy4-1.19.0.b4 (which is confirmed working by somebody else), LoPy4-1.20.0.rc1 and LoPy4-1.20.0.rc8
What am I missing?

No idea where you find/select one or the other though, haven’t used it at all myself.

Do you have the latest firmware update tool?

Had the same issue with the 1.20.0.rc8. I downgraded to 1.20.0.rc7 where it seems that loramesh is available (although I am not really sure how the packaging is implemented by pycom).

Cheers.

Thanks

Andrew